31213820

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{53}}^1\times {\mathrm{2677}}^1$

素因数の和:2750

約数の個数: 48

約数和(自身を含む): 72884448

約数和(自身を除く): 41670628

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 53, 55, 106, 110, 212, 220, 265, 530, 583, 1060, 1166, 2332, 2677, 2915, 5354, 5830, 10708, 11660, 13385, 26770, 29447, 53540, 58894, 117788, 141881, 147235, 283762, 294470, 567524, 588940, 709405, 1418810, 1560691, 2837620, 3121382, 6242764, 7803455, 15606910, 31213820]

約数ペア:

[(1, 31213820), (2, 15606910), (4, 7803455), (5, 6242764), (10, 3121382), (11, 2837620), (20, 1560691), (22, 1418810), (44, 709405), (53, 588940), (55, 567524), (106, 294470), (110, 283762), (212, 147235), (220, 141881), (265, 117788), (530, 58894), (583, 53540), (1060, 29447), (1166, 26770), (2332, 13385), (2677, 11660), (2915, 10708), (5354, 5830)]