778865080

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{61}}^1\times {\mathrm{1471}}^1$

素因数の和:1581

約数の個数: 128

約数和(自身を含む): 2102722560

約数和(自身を除く): 1323857480

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 31, 35, 40, 56, 61, 62, 70, 122, 124, 140, 155, 217, 244, 248, 280, 305, 310, 427, 434, 488, 610, 620, 854, 868, 1085, 1220, 1240, 1471, 1708, 1736, 1891, 2135, 2170, 2440, 2942, 3416, 3782, 4270, 4340, 5884, 7355, 7564, 8540, 8680, 9455, 10297, 11768, 13237, 14710, 15128, 17080, 18910, 20594, 26474, 29420, 37820, 41188, 45601, 51485, 52948, 58840, 66185, 75640, 82376, 89731, 91202, 102970, 105896, 132370, 179462, 182404, 205940, 228005, 264740, 319207, 358924, 364808, 411880, 448655, 456010, 529480, 628117, 638414, 717848, 897310, 912020, 1256234, 1276828, 1596035, 1794620, 1824040, 2512468, 2553656, 2781661, 3140585, 3192070, 3589240, 5024936, 5563322, 6281170, 6384140, 11126644, 12562340, 12768280, 13908305, 19471627, 22253288, 25124680, 27816610, 38943254, 55633220, 77886508, 97358135, 111266440, 155773016, 194716270, 389432540, 778865080]

約数ペア:

[(1, 778865080), (2, 389432540), (4, 194716270), (5, 155773016), (7, 111266440), (8, 97358135), (10, 77886508), (14, 55633220), (20, 38943254), (28, 27816610), (31, 25124680), (35, 22253288), (40, 19471627), (56, 13908305), (61, 12768280), (62, 12562340), (70, 11126644), (122, 6384140), (124, 6281170), (140, 5563322), (155, 5024936), (217, 3589240), (244, 3192070), (248, 3140585), (280, 2781661), (305, 2553656), (310, 2512468), (427, 1824040), (434, 1794620), (488, 1596035), (610, 1276828), (620, 1256234), (854, 912020), (868, 897310), (1085, 717848), (1220, 638414), (1240, 628117), (1471, 529480), (1708, 456010), (1736, 448655), (1891, 411880), (2135, 364808), (2170, 358924), (2440, 319207), (2942, 264740), (3416, 228005), (3782, 205940), (4270, 182404), (4340, 179462), (5884, 132370), (7355, 105896), (7564, 102970), (8540, 91202), (8680, 89731), (9455, 82376), (10297, 75640), (11768, 66185), (13237, 58840), (14710, 52948), (15128, 51485), (17080, 45601), (18910, 41188), (20594, 37820), (26474, 29420)]