90871760

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{263}}^1\times {\mathrm{617}}^1$

素因数の和:900

約数の個数: 80

約数和(自身を含む): 242770176

約数和(自身を除く): 151898416

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 263, 280, 526, 560, 617, 1052, 1234, 1315, 1841, 2104, 2468, 2630, 3085, 3682, 4208, 4319, 4936, 5260, 6170, 7364, 8638, 9205, 9872, 10520, 12340, 14728, 17276, 18410, 21040, 21595, 24680, 29456, 34552, 36820, 43190, 49360, 69104, 73640, 86380, 147280, 162271, 172760, 324542, 345520, 649084, 811355, 1135897, 1298168, 1622710, 2271794, 2596336, 3245420, 4543588, 5679485, 6490840, 9087176, 11358970, 12981680, 18174352, 22717940, 45435880, 90871760]

約数ペア:

[(1, 90871760), (2, 45435880), (4, 22717940), (5, 18174352), (7, 12981680), (8, 11358970), (10, 9087176), (14, 6490840), (16, 5679485), (20, 4543588), (28, 3245420), (35, 2596336), (40, 2271794), (56, 1622710), (70, 1298168), (80, 1135897), (112, 811355), (140, 649084), (263, 345520), (280, 324542), (526, 172760), (560, 162271), (617, 147280), (1052, 86380), (1234, 73640), (1315, 69104), (1841, 49360), (2104, 43190), (2468, 36820), (2630, 34552), (3085, 29456), (3682, 24680), (4208, 21595), (4319, 21040), (4936, 18410), (5260, 17276), (6170, 14728), (7364, 12340), (8638, 10520), (9205, 9872)]