20660120

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{67}}^1\times {\mathrm{593}}^1$

素因数の和:684

約数の個数: 64

約数和(自身を含む): 50893920

約数和(自身を除く): 30233800

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 67, 104, 130, 134, 260, 268, 335, 520, 536, 593, 670, 871, 1186, 1340, 1742, 2372, 2680, 2965, 3484, 4355, 4744, 5930, 6968, 7709, 8710, 11860, 15418, 17420, 23720, 30836, 34840, 38545, 39731, 61672, 77090, 79462, 154180, 158924, 198655, 308360, 317848, 397310, 516503, 794620, 1033006, 1589240, 2066012, 2582515, 4132024, 5165030, 10330060, 20660120]

約数ペア:

[(1, 20660120), (2, 10330060), (4, 5165030), (5, 4132024), (8, 2582515), (10, 2066012), (13, 1589240), (20, 1033006), (26, 794620), (40, 516503), (52, 397310), (65, 317848), (67, 308360), (104, 198655), (130, 158924), (134, 154180), (260, 79462), (268, 77090), (335, 61672), (520, 39731), (536, 38545), (593, 34840), (670, 30836), (871, 23720), (1186, 17420), (1340, 15418), (1742, 11860), (2372, 8710), (2680, 7709), (2965, 6968), (3484, 5930), (4355, 4744)]