80490340

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{23}}^1\times {\mathrm{3571}}^1$

素因数の和:3617

約数の個数: 72

約数和(自身を含む): 205232832

約数和(自身を除く): 124742492

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 23, 28, 35, 46, 49, 70, 92, 98, 115, 140, 161, 196, 230, 245, 322, 460, 490, 644, 805, 980, 1127, 1610, 2254, 3220, 3571, 4508, 5635, 7142, 11270, 14284, 17855, 22540, 24997, 35710, 49994, 71420, 82133, 99988, 124985, 164266, 174979, 249970, 328532, 349958, 410665, 499940, 574931, 699916, 821330, 874895, 1149862, 1642660, 1749790, 2299724, 2874655, 3499580, 4024517, 5749310, 8049034, 11498620, 16098068, 20122585, 40245170, 80490340]

約数ペア:

[(1, 80490340), (2, 40245170), (4, 20122585), (5, 16098068), (7, 11498620), (10, 8049034), (14, 5749310), (20, 4024517), (23, 3499580), (28, 2874655), (35, 2299724), (46, 1749790), (49, 1642660), (70, 1149862), (92, 874895), (98, 821330), (115, 699916), (140, 574931), (161, 499940), (196, 410665), (230, 349958), (245, 328532), (322, 249970), (460, 174979), (490, 164266), (644, 124985), (805, 99988), (980, 82133), (1127, 71420), (1610, 49994), (2254, 35710), (3220, 24997), (3571, 22540), (4508, 17855), (5635, 14284), (7142, 11270)]