78585520

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{97}}^1$

素因数の和:183

約数の個数: 160

約数和(自身を含む): 214361280

約数和(自身を除く): 135775760

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 19, 20, 26, 38, 40, 41, 52, 65, 76, 80, 82, 95, 97, 104, 130, 152, 164, 190, 194, 205, 208, 247, 260, 304, 328, 380, 388, 410, 485, 494, 520, 533, 656, 760, 776, 779, 820, 970, 988, 1040, 1066, 1235, 1261, 1520, 1552, 1558, 1640, 1843, 1940, 1976, 2132, 2470, 2522, 2665, 3116, 3280, 3686, 3880, 3895, 3952, 3977, 4264, 4940, 5044, 5330, 6232, 6305, 7372, 7760, 7790, 7954, 8528, 9215, 9880, 10088, 10127, 10660, 12464, 12610, 14744, 15580, 15908, 18430, 19760, 19885, 20176, 20254, 21320, 23959, 25220, 29488, 31160, 31816, 36860, 39770, 40508, 42640, 47918, 50440, 50635, 51701, 62320, 63632, 73720, 75563, 79540, 81016, 95836, 100880, 101270, 103402, 119795, 147440, 151126, 159080, 162032, 191672, 202540, 206804, 239590, 258505, 302252, 318160, 377815, 383344, 405080, 413608, 479180, 517010, 604504, 755630, 810160, 827216, 958360, 982319, 1034020, 1209008, 1511260, 1916720, 1964638, 2068040, 3022520, 3929276, 4136080, 4911595, 6045040, 7858552, 9823190, 15717104, 19646380, 39292760, 78585520]

約数ペア:

[(1, 78585520), (2, 39292760), (4, 19646380), (5, 15717104), (8, 9823190), (10, 7858552), (13, 6045040), (16, 4911595), (19, 4136080), (20, 3929276), (26, 3022520), (38, 2068040), (40, 1964638), (41, 1916720), (52, 1511260), (65, 1209008), (76, 1034020), (80, 982319), (82, 958360), (95, 827216), (97, 810160), (104, 755630), (130, 604504), (152, 517010), (164, 479180), (190, 413608), (194, 405080), (205, 383344), (208, 377815), (247, 318160), (260, 302252), (304, 258505), (328, 239590), (380, 206804), (388, 202540), (410, 191672), (485, 162032), (494, 159080), (520, 151126), (533, 147440), (656, 119795), (760, 103402), (776, 101270), (779, 100880), (820, 95836), (970, 81016), (988, 79540), (1040, 75563), (1066, 73720), (1235, 63632), (1261, 62320), (1520, 51701), (1552, 50635), (1558, 50440), (1640, 47918), (1843, 42640), (1940, 40508), (1976, 39770), (2132, 36860), (2470, 31816), (2522, 31160), (2665, 29488), (3116, 25220), (3280, 23959), (3686, 21320), (3880, 20254), (3895, 20176), (3952, 19885), (3977, 19760), (4264, 18430), (4940, 15908), (5044, 15580), (5330, 14744), (6232, 12610), (6305, 12464), (7372, 10660), (7760, 10127), (7790, 10088), (7954, 9880), (8528, 9215)]