31478130

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{397}}^1\times {\mathrm{881}}^1$

素因数の和:1291

約数の個数: 48

約数和(自身を含む): 82142424

約数和(自身を除く): 50664294

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 45, 90, 397, 794, 881, 1191, 1762, 1985, 2382, 2643, 3573, 3970, 4405, 5286, 5955, 7146, 7929, 8810, 11910, 13215, 15858, 17865, 26430, 35730, 39645, 79290, 349757, 699514, 1049271, 1748785, 2098542, 3147813, 3497570, 5246355, 6295626, 10492710, 15739065, 31478130]

約数ペア:

[(1, 31478130), (2, 15739065), (3, 10492710), (5, 6295626), (6, 5246355), (9, 3497570), (10, 3147813), (15, 2098542), (18, 1748785), (30, 1049271), (45, 699514), (90, 349757), (397, 79290), (794, 39645), (881, 35730), (1191, 26430), (1762, 17865), (1985, 15858), (2382, 13215), (2643, 11910), (3573, 8810), (3970, 7929), (4405, 7146), (5286, 5955)]