20458360

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{39343}}^1$

素因数の和:39367

約数の個数: 32

約数和(自身を含む): 49573440

約数和(自身を除く): 29115080

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 39343, 78686, 157372, 196715, 314744, 393430, 511459, 786860, 1022918, 1573720, 2045836, 2557295, 4091672, 5114590, 10229180, 20458360]

約数ペア:

[(1, 20458360), (2, 10229180), (4, 5114590), (5, 4091672), (8, 2557295), (10, 2045836), (13, 1573720), (20, 1022918), (26, 786860), (40, 511459), (52, 393430), (65, 314744), (104, 196715), (130, 157372), (260, 78686), (520, 39343)]