31478460

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{40357}}^1$

素因数の和:40382

約数の個数: 48

約数和(自身を含む): 94922016

約数和(自身を除く): 63443556

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 20, 26, 30, 39, 52, 60, 65, 78, 130, 156, 195, 260, 390, 780, 40357, 80714, 121071, 161428, 201785, 242142, 403570, 484284, 524641, 605355, 807140, 1049282, 1210710, 1573923, 2098564, 2421420, 2623205, 3147846, 5246410, 6295692, 7869615, 10492820, 15739230, 31478460]

約数ペア:

[(1, 31478460), (2, 15739230), (3, 10492820), (4, 7869615), (5, 6295692), (6, 5246410), (10, 3147846), (12, 2623205), (13, 2421420), (15, 2098564), (20, 1573923), (26, 1210710), (30, 1049282), (39, 807140), (52, 605355), (60, 524641), (65, 484284), (78, 403570), (130, 242142), (156, 201785), (195, 161428), (260, 121071), (390, 80714), (780, 40357)]