78282008

素因数分解:

$2^3\times 7^2\times {\mathrm{17}}^2\times {\mathrm{691}}^1$

素因数の和:745

約数の個数: 72

約数和(自身を含む): 181639620

約数和(自身を除く): 103357612

約数列:

[1, 2, 4, 7, 8, 14, 17, 28, 34, 49, 56, 68, 98, 119, 136, 196, 238, 289, 392, 476, 578, 691, 833, 952, 1156, 1382, 1666, 2023, 2312, 2764, 3332, 4046, 4837, 5528, 6664, 8092, 9674, 11747, 14161, 16184, 19348, 23494, 28322, 33859, 38696, 46988, 56644, 67718, 82229, 93976, 113288, 135436, 164458, 199699, 270872, 328916, 399398, 575603, 657832, 798796, 1151206, 1397893, 1597592, 2302412, 2795786, 4604824, 5591572, 9785251, 11183144, 19570502, 39141004, 78282008]

約数ペア:

[(1, 78282008), (2, 39141004), (4, 19570502), (7, 11183144), (8, 9785251), (14, 5591572), (17, 4604824), (28, 2795786), (34, 2302412), (49, 1597592), (56, 1397893), (68, 1151206), (98, 798796), (119, 657832), (136, 575603), (196, 399398), (238, 328916), (289, 270872), (392, 199699), (476, 164458), (578, 135436), (691, 113288), (833, 93976), (952, 82229), (1156, 67718), (1382, 56644), (1666, 46988), (2023, 38696), (2312, 33859), (2764, 28322), (3332, 23494), (4046, 19348), (4837, 16184), (5528, 14161), (6664, 11747), (8092, 9674)]