123315640

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{6203}}^1$

素因数の和:6292

約数の個数: 64

約数和(自身を含む): 321615360

約数和(自身を除く): 198299720

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 71, 140, 142, 280, 284, 355, 497, 568, 710, 994, 1420, 1988, 2485, 2840, 3976, 4970, 6203, 9940, 12406, 19880, 24812, 31015, 43421, 49624, 62030, 86842, 124060, 173684, 217105, 248120, 347368, 434210, 440413, 868420, 880826, 1736840, 1761652, 2202065, 3082891, 3523304, 4404130, 6165782, 8808260, 12331564, 15414455, 17616520, 24663128, 30828910, 61657820, 123315640]

約数ペア:

[(1, 123315640), (2, 61657820), (4, 30828910), (5, 24663128), (7, 17616520), (8, 15414455), (10, 12331564), (14, 8808260), (20, 6165782), (28, 4404130), (35, 3523304), (40, 3082891), (56, 2202065), (70, 1761652), (71, 1736840), (140, 880826), (142, 868420), (280, 440413), (284, 434210), (355, 347368), (497, 248120), (568, 217105), (710, 173684), (994, 124060), (1420, 86842), (1988, 62030), (2485, 49624), (2840, 43421), (3976, 31015), (4970, 24812), (6203, 19880), (9940, 12406)]