31756920

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{20357}}^1$

素因数の和:20384

約数の個数: 64

約数和(自身を含む): 102604320

約数和(自身を除く): 70847400

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 20, 24, 26, 30, 39, 40, 52, 60, 65, 78, 104, 120, 130, 156, 195, 260, 312, 390, 520, 780, 1560, 20357, 40714, 61071, 81428, 101785, 122142, 162856, 203570, 244284, 264641, 305355, 407140, 488568, 529282, 610710, 793923, 814280, 1058564, 1221420, 1323205, 1587846, 2117128, 2442840, 2646410, 3175692, 3969615, 5292820, 6351384, 7939230, 10585640, 15878460, 31756920]

約数ペア:

[(1, 31756920), (2, 15878460), (3, 10585640), (4, 7939230), (5, 6351384), (6, 5292820), (8, 3969615), (10, 3175692), (12, 2646410), (13, 2442840), (15, 2117128), (20, 1587846), (24, 1323205), (26, 1221420), (30, 1058564), (39, 814280), (40, 793923), (52, 610710), (60, 529282), (65, 488568), (78, 407140), (104, 305355), (120, 264641), (130, 244284), (156, 203570), (195, 162856), (260, 122142), (312, 101785), (390, 81428), (520, 61071), (780, 40714), (1560, 20357)]