66687680

素因数分解:

$2^6\times 5^1\times {\mathrm{271}}^1\times {\mathrm{769}}^1$

素因数の和:1057

約数の個数: 56

約数和(自身を含む): 159593280

約数和(自身を除く): 92905600

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 271, 320, 542, 769, 1084, 1355, 1538, 2168, 2710, 3076, 3845, 4336, 5420, 6152, 7690, 8672, 10840, 12304, 15380, 17344, 21680, 24608, 30760, 43360, 49216, 61520, 86720, 123040, 208399, 246080, 416798, 833596, 1041995, 1667192, 2083990, 3334384, 4167980, 6668768, 8335960, 13337536, 16671920, 33343840, 66687680]

約数ペア:

[(1, 66687680), (2, 33343840), (4, 16671920), (5, 13337536), (8, 8335960), (10, 6668768), (16, 4167980), (20, 3334384), (32, 2083990), (40, 1667192), (64, 1041995), (80, 833596), (160, 416798), (271, 246080), (320, 208399), (542, 123040), (769, 86720), (1084, 61520), (1355, 49216), (1538, 43360), (2168, 30760), (2710, 24608), (3076, 21680), (3845, 17344), (4336, 15380), (5420, 12304), (6152, 10840), (7690, 8672)]