778974920

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{53}}^1\times {\mathrm{83}}^1\times {\mathrm{233}}^1$

素因数の和:399

約数の個数: 128

約数和(自身を含む): 1910563200

約数和(自身を除く): 1131588280

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 53, 76, 83, 95, 106, 152, 166, 190, 212, 233, 265, 332, 380, 415, 424, 466, 530, 664, 760, 830, 932, 1007, 1060, 1165, 1577, 1660, 1864, 2014, 2120, 2330, 3154, 3320, 4028, 4399, 4427, 4660, 5035, 6308, 7885, 8056, 8798, 8854, 9320, 10070, 12349, 12616, 15770, 17596, 17708, 19339, 20140, 21995, 22135, 24698, 31540, 35192, 35416, 38678, 40280, 43990, 44270, 49396, 61745, 63080, 77356, 83581, 87980, 88540, 96695, 98792, 123490, 154712, 167162, 175960, 177080, 193390, 234631, 246980, 334324, 367441, 386780, 417905, 469262, 493960, 668648, 734882, 773560, 835810, 938524, 1024967, 1173155, 1469764, 1671620, 1837205, 1877048, 2049934, 2346310, 2939528, 3343240, 3674410, 4099868, 4692620, 5124835, 7348820, 8199736, 9385240, 10249670, 14697640, 19474373, 20499340, 38948746, 40998680, 77897492, 97371865, 155794984, 194743730, 389487460, 778974920]

約数ペア:

[(1, 778974920), (2, 389487460), (4, 194743730), (5, 155794984), (8, 97371865), (10, 77897492), (19, 40998680), (20, 38948746), (38, 20499340), (40, 19474373), (53, 14697640), (76, 10249670), (83, 9385240), (95, 8199736), (106, 7348820), (152, 5124835), (166, 4692620), (190, 4099868), (212, 3674410), (233, 3343240), (265, 2939528), (332, 2346310), (380, 2049934), (415, 1877048), (424, 1837205), (466, 1671620), (530, 1469764), (664, 1173155), (760, 1024967), (830, 938524), (932, 835810), (1007, 773560), (1060, 734882), (1165, 668648), (1577, 493960), (1660, 469262), (1864, 417905), (2014, 386780), (2120, 367441), (2330, 334324), (3154, 246980), (3320, 234631), (4028, 193390), (4399, 177080), (4427, 175960), (4660, 167162), (5035, 154712), (6308, 123490), (7885, 98792), (8056, 96695), (8798, 88540), (8854, 87980), (9320, 83581), (10070, 77356), (12349, 63080), (12616, 61745), (15770, 49396), (17596, 44270), (17708, 43990), (19339, 40280), (20140, 38678), (21995, 35416), (22135, 35192), (24698, 31540)]