128743420

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{21529}}^1$

素因数の和:21574

約数の個数: 48

約数和(自身を含む): 303831360

約数和(自身を除く): 175087940

約数列:

[1, 2, 4, 5, 10, 13, 20, 23, 26, 46, 52, 65, 92, 115, 130, 230, 260, 299, 460, 598, 1196, 1495, 2990, 5980, 21529, 43058, 86116, 107645, 215290, 279877, 430580, 495167, 559754, 990334, 1119508, 1399385, 1980668, 2475835, 2798770, 4951670, 5597540, 6437171, 9903340, 12874342, 25748684, 32185855, 64371710, 128743420]

約数ペア:

[(1, 128743420), (2, 64371710), (4, 32185855), (5, 25748684), (10, 12874342), (13, 9903340), (20, 6437171), (23, 5597540), (26, 4951670), (46, 2798770), (52, 2475835), (65, 1980668), (92, 1399385), (115, 1119508), (130, 990334), (230, 559754), (260, 495167), (299, 430580), (460, 279877), (598, 215290), (1196, 107645), (1495, 86116), (2990, 43058), (5980, 21529)]