8244760

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{61}}^1\times {\mathrm{109}}^1$

素因数の和:212

約数の個数: 64

約数和(自身を含む): 19641600

約数和(自身を除く): 11396840

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 61, 62, 109, 122, 124, 155, 218, 244, 248, 305, 310, 436, 488, 545, 610, 620, 872, 1090, 1220, 1240, 1891, 2180, 2440, 3379, 3782, 4360, 6649, 6758, 7564, 9455, 13298, 13516, 15128, 16895, 18910, 26596, 27032, 33245, 33790, 37820, 53192, 66490, 67580, 75640, 132980, 135160, 206119, 265960, 412238, 824476, 1030595, 1648952, 2061190, 4122380, 8244760]

約数ペア:

[(1, 8244760), (2, 4122380), (4, 2061190), (5, 1648952), (8, 1030595), (10, 824476), (20, 412238), (31, 265960), (40, 206119), (61, 135160), (62, 132980), (109, 75640), (122, 67580), (124, 66490), (155, 53192), (218, 37820), (244, 33790), (248, 33245), (305, 27032), (310, 26596), (436, 18910), (488, 16895), (545, 15128), (610, 13516), (620, 13298), (872, 9455), (1090, 7564), (1220, 6758), (1240, 6649), (1891, 4360), (2180, 3782), (2440, 3379)]