81058640

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{1901}}^1$

素因数の和:1968

約数の個数: 80

約数和(自身を含む): 208017936

約数和(自身を除く): 126959296

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 41, 52, 65, 80, 82, 104, 130, 164, 205, 208, 260, 328, 410, 520, 533, 656, 820, 1040, 1066, 1640, 1901, 2132, 2665, 3280, 3802, 4264, 5330, 7604, 8528, 9505, 10660, 15208, 19010, 21320, 24713, 30416, 38020, 42640, 49426, 76040, 77941, 98852, 123565, 152080, 155882, 197704, 247130, 311764, 389705, 395408, 494260, 623528, 779410, 988520, 1013233, 1247056, 1558820, 1977040, 2026466, 3117640, 4052932, 5066165, 6235280, 8105864, 10132330, 16211728, 20264660, 40529320, 81058640]

約数ペア:

[(1, 81058640), (2, 40529320), (4, 20264660), (5, 16211728), (8, 10132330), (10, 8105864), (13, 6235280), (16, 5066165), (20, 4052932), (26, 3117640), (40, 2026466), (41, 1977040), (52, 1558820), (65, 1247056), (80, 1013233), (82, 988520), (104, 779410), (130, 623528), (164, 494260), (205, 395408), (208, 389705), (260, 311764), (328, 247130), (410, 197704), (520, 155882), (533, 152080), (656, 123565), (820, 98852), (1040, 77941), (1066, 76040), (1640, 49426), (1901, 42640), (2132, 38020), (2665, 30416), (3280, 24713), (3802, 21320), (4264, 19010), (5330, 15208), (7604, 10660), (8528, 9505)]