80203890

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{205651}}^1$

素因数の和:205674

約数の個数: 32

約数和(自身を含む): 207297216

約数和(自身を除く): 127093326

約数列:

[1, 2, 3, 5, 6, 10, 13, 15, 26, 30, 39, 65, 78, 130, 195, 390, 205651, 411302, 616953, 1028255, 1233906, 2056510, 2673463, 3084765, 5346926, 6169530, 8020389, 13367315, 16040778, 26734630, 40101945, 80203890]

約数ペア:

[(1, 80203890), (2, 40101945), (3, 26734630), (5, 16040778), (6, 13367315), (10, 8020389), (13, 6169530), (15, 5346926), (26, 3084765), (30, 2673463), (39, 2056510), (65, 1233906), (78, 1028255), (130, 616953), (195, 411302), (390, 205651)]