20014720

素因数分解:

$2^7\times 5^1\times {\mathrm{11}}^1\times {\mathrm{2843}}^1$

素因数の和:2873

約数の個数: 64

約数和(自身を含む): 52215840

約数和(自身を除く): 32201120

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, 320, 352, 440, 640, 704, 880, 1408, 1760, 2843, 3520, 5686, 7040, 11372, 14215, 22744, 28430, 31273, 45488, 56860, 62546, 90976, 113720, 125092, 156365, 181952, 227440, 250184, 312730, 363904, 454880, 500368, 625460, 909760, 1000736, 1250920, 1819520, 2001472, 2501840, 4002944, 5003680, 10007360, 20014720]

約数ペア:

[(1, 20014720), (2, 10007360), (4, 5003680), (5, 4002944), (8, 2501840), (10, 2001472), (11, 1819520), (16, 1250920), (20, 1000736), (22, 909760), (32, 625460), (40, 500368), (44, 454880), (55, 363904), (64, 312730), (80, 250184), (88, 227440), (110, 181952), (128, 156365), (160, 125092), (176, 113720), (220, 90976), (320, 62546), (352, 56860), (440, 45488), (640, 31273), (704, 28430), (880, 22744), (1408, 14215), (1760, 11372), (2843, 7040), (3520, 5686)]