1915041920

素因数分解:

$2^7\times 5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{103}}^1\times {\mathrm{139}}^1$

素因数の和:291

約数の個数: 256

約数和(自身を含む): 5346432000

約数和(自身を除く): 3431390080

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 19, 20, 22, 32, 38, 40, 44, 55, 64, 76, 80, 88, 95, 103, 110, 128, 139, 152, 160, 176, 190, 206, 209, 220, 278, 304, 320, 352, 380, 412, 418, 440, 515, 556, 608, 640, 695, 704, 760, 824, 836, 880, 1030, 1045, 1112, 1133, 1216, 1390, 1408, 1520, 1529, 1648, 1672, 1760, 1957, 2060, 2090, 2224, 2266, 2432, 2641, 2780, 3040, 3058, 3296, 3344, 3520, 3914, 4120, 4180, 4448, 4532, 5282, 5560, 5665, 6080, 6116, 6592, 6688, 7040, 7645, 7828, 8240, 8360, 8896, 9064, 9785, 10564, 11120, 11330, 12160, 12232, 13184, 13205, 13376, 14317, 15290, 15656, 16480, 16720, 17792, 18128, 19570, 21128, 21527, 22240, 22660, 24464, 26410, 26752, 28634, 29051, 30580, 31312, 32960, 33440, 36256, 39140, 42256, 43054, 44480, 45320, 48928, 52820, 57268, 58102, 61160, 62624, 65920, 66880, 71585, 72512, 78280, 84512, 86108, 88960, 90640, 97856, 105640, 107635, 114536, 116204, 122320, 125248, 133760, 143170, 145024, 145255, 156560, 157487, 169024, 172216, 181280, 195712, 211280, 215270, 229072, 232408, 244640, 250496, 272023, 286340, 290510, 313120, 314974, 338048, 344432, 362560, 422560, 430540, 458144, 464816, 489280, 544046, 572680, 581020, 626240, 629948, 688864, 725120, 787435, 845120, 861080, 916288, 929632, 978560, 1088092, 1145360, 1162040, 1252480, 1259896, 1360115, 1377728, 1574870, 1690240, 1722160, 1832576, 1859264, 2176184, 2290720, 2324080, 2519792, 2720230, 2755456, 2992253, 3149740, 3444320, 3718528, 4352368, 4581440, 4648160, 5039584, 5440460, 5984506, 6299480, 6888640, 8704736, 9162880, 9296320, 10079168, 10880920, 11969012, 12598960, 13777280, 14961265, 17409472, 18592640, 20158336, 21761840, 23938024, 25197920, 29922530, 34818944, 43523680, 47876048, 50395840, 59845060, 87047360, 95752096, 100791680, 119690120, 174094720, 191504192, 239380240, 383008384, 478760480, 957520960, 1915041920]

約数ペア:

[(1, 1915041920), (2, 957520960), (4, 478760480), (5, 383008384), (8, 239380240), (10, 191504192), (11, 174094720), (16, 119690120), (19, 100791680), (20, 95752096), (22, 87047360), (32, 59845060), (38, 50395840), (40, 47876048), (44, 43523680), (55, 34818944), (64, 29922530), (76, 25197920), (80, 23938024), (88, 21761840), (95, 20158336), (103, 18592640), (110, 17409472), (128, 14961265), (139, 13777280), (152, 12598960), (160, 11969012), (176, 10880920), (190, 10079168), (206, 9296320), (209, 9162880), (220, 8704736), (278, 6888640), (304, 6299480), (320, 5984506), (352, 5440460), (380, 5039584), (412, 4648160), (418, 4581440), (440, 4352368), (515, 3718528), (556, 3444320), (608, 3149740), (640, 2992253), (695, 2755456), (704, 2720230), (760, 2519792), (824, 2324080), (836, 2290720), (880, 2176184), (1030, 1859264), (1045, 1832576), (1112, 1722160), (1133, 1690240), (1216, 1574870), (1390, 1377728), (1408, 1360115), (1520, 1259896), (1529, 1252480), (1648, 1162040), (1672, 1145360), (1760, 1088092), (1957, 978560), (2060, 929632), (2090, 916288), (2224, 861080), (2266, 845120), (2432, 787435), (2641, 725120), (2780, 688864), (3040, 629948), (3058, 626240), (3296, 581020), (3344, 572680), (3520, 544046), (3914, 489280), (4120, 464816), (4180, 458144), (4448, 430540), (4532, 422560), (5282, 362560), (5560, 344432), (5665, 338048), (6080, 314974), (6116, 313120), (6592, 290510), (6688, 286340), (7040, 272023), (7645, 250496), (7828, 244640), (8240, 232408), (8360, 229072), (8896, 215270), (9064, 211280), (9785, 195712), (10564, 181280), (11120, 172216), (11330, 169024), (12160, 157487), (12232, 156560), (13184, 145255), (13205, 145024), (13376, 143170), (14317, 133760), (15290, 125248), (15656, 122320), (16480, 116204), (16720, 114536), (17792, 107635), (18128, 105640), (19570, 97856), (21128, 90640), (21527, 88960), (22240, 86108), (22660, 84512), (24464, 78280), (26410, 72512), (26752, 71585), (28634, 66880), (29051, 65920), (30580, 62624), (31312, 61160), (32960, 58102), (33440, 57268), (36256, 52820), (39140, 48928), (42256, 45320), (43054, 44480)]