20564808

素因数分解:

$2^3\times 3^1\times {\mathrm{11}}^1\times {\mathrm{61}}^1\times {\mathrm{1277}}^1$

素因数の和:1358

約数の個数: 64

約数和(自身を含む): 57049920

約数和(自身を除く): 36485112

約数列:

[1, 2, 3, 4, 6, 8, 11, 12, 22, 24, 33, 44, 61, 66, 88, 122, 132, 183, 244, 264, 366, 488, 671, 732, 1277, 1342, 1464, 2013, 2554, 2684, 3831, 4026, 5108, 5368, 7662, 8052, 10216, 14047, 15324, 16104, 28094, 30648, 42141, 56188, 77897, 84282, 112376, 155794, 168564, 233691, 311588, 337128, 467382, 623176, 856867, 934764, 1713734, 1869528, 2570601, 3427468, 5141202, 6854936, 10282404, 20564808]

約数ペア:

[(1, 20564808), (2, 10282404), (3, 6854936), (4, 5141202), (6, 3427468), (8, 2570601), (11, 1869528), (12, 1713734), (22, 934764), (24, 856867), (33, 623176), (44, 467382), (61, 337128), (66, 311588), (88, 233691), (122, 168564), (132, 155794), (183, 112376), (244, 84282), (264, 77897), (366, 56188), (488, 42141), (671, 30648), (732, 28094), (1277, 16104), (1342, 15324), (1464, 14047), (2013, 10216), (2554, 8052), (2684, 7662), (3831, 5368), (4026, 5108)]