85791440

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{239}}^1\times {\mathrm{641}}^1$

素因数の和:900

約数の個数: 80

約数和(自身を含む): 229271040

約数和(自身を除く): 143479600

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 239, 280, 478, 560, 641, 956, 1195, 1282, 1673, 1912, 2390, 2564, 3205, 3346, 3824, 4487, 4780, 5128, 6410, 6692, 8365, 8974, 9560, 10256, 12820, 13384, 16730, 17948, 19120, 22435, 25640, 26768, 33460, 35896, 44870, 51280, 66920, 71792, 89740, 133840, 153199, 179480, 306398, 358960, 612796, 765995, 1072393, 1225592, 1531990, 2144786, 2451184, 3063980, 4289572, 5361965, 6127960, 8579144, 10723930, 12255920, 17158288, 21447860, 42895720, 85791440]

約数ペア:

[(1, 85791440), (2, 42895720), (4, 21447860), (5, 17158288), (7, 12255920), (8, 10723930), (10, 8579144), (14, 6127960), (16, 5361965), (20, 4289572), (28, 3063980), (35, 2451184), (40, 2144786), (56, 1531990), (70, 1225592), (80, 1072393), (112, 765995), (140, 612796), (239, 358960), (280, 306398), (478, 179480), (560, 153199), (641, 133840), (956, 89740), (1195, 71792), (1282, 66920), (1673, 51280), (1912, 44870), (2390, 35896), (2564, 33460), (3205, 26768), (3346, 25640), (3824, 22435), (4487, 19120), (4780, 17948), (5128, 16730), (6410, 13384), (6692, 12820), (8365, 10256), (8974, 9560)]