20627648

素因数分解:

$2^6\times {\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{281}}^1$

素因数の和:361

約数の個数: 56

約数和(自身を含む): 43549824

約数和(自身を除く): 22922176

約数列:

[1, 2, 4, 8, 16, 31, 32, 37, 62, 64, 74, 124, 148, 248, 281, 296, 496, 562, 592, 992, 1124, 1147, 1184, 1984, 2248, 2294, 2368, 4496, 4588, 8711, 8992, 9176, 10397, 17422, 17984, 18352, 20794, 34844, 36704, 41588, 69688, 73408, 83176, 139376, 166352, 278752, 322307, 332704, 557504, 644614, 665408, 1289228, 2578456, 5156912, 10313824, 20627648]

約数ペア:

[(1, 20627648), (2, 10313824), (4, 5156912), (8, 2578456), (16, 1289228), (31, 665408), (32, 644614), (37, 557504), (62, 332704), (64, 322307), (74, 278752), (124, 166352), (148, 139376), (248, 83176), (281, 73408), (296, 69688), (496, 41588), (562, 36704), (592, 34844), (992, 20794), (1124, 18352), (1147, 17984), (1184, 17422), (1984, 10397), (2248, 9176), (2294, 8992), (2368, 8711), (4496, 4588)]