40828840

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{78517}}^1$

素因数の和:78541

約数の個数: 32

約数和(自身を含む): 98932680

約数和(自身を除く): 58103840

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 78517, 157034, 314068, 392585, 628136, 785170, 1020721, 1570340, 2041442, 3140680, 4082884, 5103605, 8165768, 10207210, 20414420, 40828840]

約数ペア:

[(1, 40828840), (2, 20414420), (4, 10207210), (5, 8165768), (8, 5103605), (10, 4082884), (13, 3140680), (20, 2041442), (26, 1570340), (40, 1020721), (52, 785170), (65, 628136), (104, 392585), (130, 314068), (260, 157034), (520, 78517)]