90195520

素因数分解:

$2^6\times 5^1\times {\mathrm{521}}^1\times {\mathrm{541}}^1$

素因数の和:1079

約数の個数: 56

約数和(自身を含む): 215588088

約数和(自身を除く): 125392568

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 320, 521, 541, 1042, 1082, 2084, 2164, 2605, 2705, 4168, 4328, 5210, 5410, 8336, 8656, 10420, 10820, 16672, 17312, 20840, 21640, 33344, 34624, 41680, 43280, 83360, 86560, 166720, 173120, 281861, 563722, 1127444, 1409305, 2254888, 2818610, 4509776, 5637220, 9019552, 11274440, 18039104, 22548880, 45097760, 90195520]

約数ペア:

[(1, 90195520), (2, 45097760), (4, 22548880), (5, 18039104), (8, 11274440), (10, 9019552), (16, 5637220), (20, 4509776), (32, 2818610), (40, 2254888), (64, 1409305), (80, 1127444), (160, 563722), (320, 281861), (521, 173120), (541, 166720), (1042, 86560), (1082, 83360), (2084, 43280), (2164, 41680), (2605, 34624), (2705, 33344), (4168, 21640), (4328, 20840), (5210, 17312), (5410, 16672), (8336, 10820), (8656, 10420)]