258236680

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{496609}}^1$

素因数の和:496633

約数の個数: 32

約数和(自身を含む): 625728600

約数和(自身を除く): 367491920

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 496609, 993218, 1986436, 2483045, 3972872, 4966090, 6455917, 9932180, 12911834, 19864360, 25823668, 32279585, 51647336, 64559170, 129118340, 258236680]

約数ペア:

[(1, 258236680), (2, 129118340), (4, 64559170), (5, 51647336), (8, 32279585), (10, 25823668), (13, 19864360), (20, 12911834), (26, 9932180), (40, 6455917), (52, 4966090), (65, 3972872), (104, 2483045), (130, 1986436), (260, 993218), (520, 496609)]