131975680

素因数分解:

$2^9\times 5^1\times {\mathrm{31}}^1\times {\mathrm{1663}}^1$

素因数の和:1717

約数の個数: 80

約数和(自身を含む): 326836224

約数和(自身を除く): 194860544

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 40, 62, 64, 80, 124, 128, 155, 160, 248, 256, 310, 320, 496, 512, 620, 640, 992, 1240, 1280, 1663, 1984, 2480, 2560, 3326, 3968, 4960, 6652, 7936, 8315, 9920, 13304, 15872, 16630, 19840, 26608, 33260, 39680, 51553, 53216, 66520, 79360, 103106, 106432, 133040, 206212, 212864, 257765, 266080, 412424, 425728, 515530, 532160, 824848, 851456, 1031060, 1064320, 1649696, 2062120, 2128640, 3299392, 4124240, 4257280, 6598784, 8248480, 13197568, 16496960, 26395136, 32993920, 65987840, 131975680]

約数ペア:

[(1, 131975680), (2, 65987840), (4, 32993920), (5, 26395136), (8, 16496960), (10, 13197568), (16, 8248480), (20, 6598784), (31, 4257280), (32, 4124240), (40, 3299392), (62, 2128640), (64, 2062120), (80, 1649696), (124, 1064320), (128, 1031060), (155, 851456), (160, 824848), (248, 532160), (256, 515530), (310, 425728), (320, 412424), (496, 266080), (512, 257765), (620, 212864), (640, 206212), (992, 133040), (1240, 106432), (1280, 103106), (1663, 79360), (1984, 66520), (2480, 53216), (2560, 51553), (3326, 39680), (3968, 33260), (4960, 26608), (6652, 19840), (7936, 16630), (8315, 15872), (9920, 13304)]