20751968

素因数分解:

$2^5\times {\mathrm{17}}^1\times {\mathrm{37}}^1\times {\mathrm{1031}}^1$

素因数の和:1095

約数の個数: 48

約数和(自身を含む): 44470944

約数和(自身を除く): 23718976

約数列:

[1, 2, 4, 8, 16, 17, 32, 34, 37, 68, 74, 136, 148, 272, 296, 544, 592, 629, 1031, 1184, 1258, 2062, 2516, 4124, 5032, 8248, 10064, 16496, 17527, 20128, 32992, 35054, 38147, 70108, 76294, 140216, 152588, 280432, 305176, 560864, 610352, 648499, 1220704, 1296998, 2593996, 5187992, 10375984, 20751968]

約数ペア:

[(1, 20751968), (2, 10375984), (4, 5187992), (8, 2593996), (16, 1296998), (17, 1220704), (32, 648499), (34, 610352), (37, 560864), (68, 305176), (74, 280432), (136, 152588), (148, 140216), (272, 76294), (296, 70108), (544, 38147), (592, 35054), (629, 32992), (1031, 20128), (1184, 17527), (1258, 16496), (2062, 10064), (2516, 8248), (4124, 5032)]