78904360

素因数分解:

$2^3\times 5^1\times {\mathrm{29}}^1\times {\mathrm{251}}^1\times {\mathrm{271}}^1$

素因数の和:562

約数の個数: 64

約数和(自身を含む): 185068800

約数和(自身を除く): 106164440

約数列:

[1, 2, 4, 5, 8, 10, 20, 29, 40, 58, 116, 145, 232, 251, 271, 290, 502, 542, 580, 1004, 1084, 1160, 1255, 1355, 2008, 2168, 2510, 2710, 5020, 5420, 7279, 7859, 10040, 10840, 14558, 15718, 29116, 31436, 36395, 39295, 58232, 62872, 68021, 72790, 78590, 136042, 145580, 157180, 272084, 291160, 314360, 340105, 544168, 680210, 1360420, 1972609, 2720840, 3945218, 7890436, 9863045, 15780872, 19726090, 39452180, 78904360]

約数ペア:

[(1, 78904360), (2, 39452180), (4, 19726090), (5, 15780872), (8, 9863045), (10, 7890436), (20, 3945218), (29, 2720840), (40, 1972609), (58, 1360420), (116, 680210), (145, 544168), (232, 340105), (251, 314360), (271, 291160), (290, 272084), (502, 157180), (542, 145580), (580, 136042), (1004, 78590), (1084, 72790), (1160, 68021), (1255, 62872), (1355, 58232), (2008, 39295), (2168, 36395), (2510, 31436), (2710, 29116), (5020, 15718), (5420, 14558), (7279, 10840), (7859, 10040)]