66915280

素因数分解:

$2^4\times 5^1\times {\mathrm{23}}^1\times {\mathrm{41}}^1\times {\mathrm{887}}^1$

素因数の和:964

約数の個数: 80

約数和(自身を含む): 166489344

約数和(自身を除く): 99574064

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 23, 40, 41, 46, 80, 82, 92, 115, 164, 184, 205, 230, 328, 368, 410, 460, 656, 820, 887, 920, 943, 1640, 1774, 1840, 1886, 3280, 3548, 3772, 4435, 4715, 7096, 7544, 8870, 9430, 14192, 15088, 17740, 18860, 20401, 35480, 36367, 37720, 40802, 70960, 72734, 75440, 81604, 102005, 145468, 163208, 181835, 204010, 290936, 326416, 363670, 408020, 581872, 727340, 816040, 836441, 1454680, 1632080, 1672882, 2909360, 3345764, 4182205, 6691528, 8364410, 13383056, 16728820, 33457640, 66915280]

約数ペア:

[(1, 66915280), (2, 33457640), (4, 16728820), (5, 13383056), (8, 8364410), (10, 6691528), (16, 4182205), (20, 3345764), (23, 2909360), (40, 1672882), (41, 1632080), (46, 1454680), (80, 836441), (82, 816040), (92, 727340), (115, 581872), (164, 408020), (184, 363670), (205, 326416), (230, 290936), (328, 204010), (368, 181835), (410, 163208), (460, 145468), (656, 102005), (820, 81604), (887, 75440), (920, 72734), (943, 70960), (1640, 40802), (1774, 37720), (1840, 36367), (1886, 35480), (3280, 20401), (3548, 18860), (3772, 17740), (4435, 15088), (4715, 14192), (7096, 9430), (7544, 8870)]