31581440

素因数分解:

$2^8\times 5^1\times {\mathrm{11}}^1\times {\mathrm{2243}}^1$

素因数の和:2275

約数の個数: 72

約数和(自身を含む): 82561248

約数和(自身を除く): 50979808

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 32, 40, 44, 55, 64, 80, 88, 110, 128, 160, 176, 220, 256, 320, 352, 440, 640, 704, 880, 1280, 1408, 1760, 2243, 2816, 3520, 4486, 7040, 8972, 11215, 14080, 17944, 22430, 24673, 35888, 44860, 49346, 71776, 89720, 98692, 123365, 143552, 179440, 197384, 246730, 287104, 358880, 394768, 493460, 574208, 717760, 789536, 986920, 1435520, 1579072, 1973840, 2871040, 3158144, 3947680, 6316288, 7895360, 15790720, 31581440]

約数ペア:

[(1, 31581440), (2, 15790720), (4, 7895360), (5, 6316288), (8, 3947680), (10, 3158144), (11, 2871040), (16, 1973840), (20, 1579072), (22, 1435520), (32, 986920), (40, 789536), (44, 717760), (55, 574208), (64, 493460), (80, 394768), (88, 358880), (110, 287104), (128, 246730), (160, 197384), (176, 179440), (220, 143552), (256, 123365), (320, 98692), (352, 89720), (440, 71776), (640, 49346), (704, 44860), (880, 35888), (1280, 24673), (1408, 22430), (1760, 17944), (2243, 14080), (2816, 11215), (3520, 8972), (4486, 7040)]