20018656

素因数分解:

$2^5\times 7^2\times {\mathrm{17}}^1\times {\mathrm{751}}^1$

素因数の和:792

約数の個数: 72

約数和(自身を含む): 48607776

約数和(自身を除く): 28589120

約数列:

[1, 2, 4, 7, 8, 14, 16, 17, 28, 32, 34, 49, 56, 68, 98, 112, 119, 136, 196, 224, 238, 272, 392, 476, 544, 751, 784, 833, 952, 1502, 1568, 1666, 1904, 3004, 3332, 3808, 5257, 6008, 6664, 10514, 12016, 12767, 13328, 21028, 24032, 25534, 26656, 36799, 42056, 51068, 73598, 84112, 89369, 102136, 147196, 168224, 178738, 204272, 294392, 357476, 408544, 588784, 625583, 714952, 1177568, 1251166, 1429904, 2502332, 2859808, 5004664, 10009328, 20018656]

約数ペア:

[(1, 20018656), (2, 10009328), (4, 5004664), (7, 2859808), (8, 2502332), (14, 1429904), (16, 1251166), (17, 1177568), (28, 714952), (32, 625583), (34, 588784), (49, 408544), (56, 357476), (68, 294392), (98, 204272), (112, 178738), (119, 168224), (136, 147196), (196, 102136), (224, 89369), (238, 84112), (272, 73598), (392, 51068), (476, 42056), (544, 36799), (751, 26656), (784, 25534), (833, 24032), (952, 21028), (1502, 13328), (1568, 12767), (1666, 12016), (1904, 10514), (3004, 6664), (3332, 6008), (3808, 5257)]