90257080

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{331}}^1\times {\mathrm{401}}^1$

素因数の和:760

約数の個数: 64

約数和(自身を含む): 216211680

約数和(自身を除く): 125954600

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 68, 85, 136, 170, 331, 340, 401, 662, 680, 802, 1324, 1604, 1655, 2005, 2648, 3208, 3310, 4010, 5627, 6620, 6817, 8020, 11254, 13240, 13634, 16040, 22508, 27268, 28135, 34085, 45016, 54536, 56270, 68170, 112540, 132731, 136340, 225080, 265462, 272680, 530924, 663655, 1061848, 1327310, 2256427, 2654620, 4512854, 5309240, 9025708, 11282135, 18051416, 22564270, 45128540, 90257080]

約数ペア:

[(1, 90257080), (2, 45128540), (4, 22564270), (5, 18051416), (8, 11282135), (10, 9025708), (17, 5309240), (20, 4512854), (34, 2654620), (40, 2256427), (68, 1327310), (85, 1061848), (136, 663655), (170, 530924), (331, 272680), (340, 265462), (401, 225080), (662, 136340), (680, 132731), (802, 112540), (1324, 68170), (1604, 56270), (1655, 54536), (2005, 45016), (2648, 34085), (3208, 28135), (3310, 27268), (4010, 22508), (5627, 16040), (6620, 13634), (6817, 13240), (8020, 11254)]