20256316

素因数分解:

$2^2\times {\mathrm{17}}^1\times {\mathrm{37}}^1\times {\mathrm{83}}^1\times {\mathrm{97}}^1$

素因数の和:238

約数の個数: 48

約数和(自身を含む): 39414816

約数和(自身を除く): 19158500

約数列:

[1, 2, 4, 17, 34, 37, 68, 74, 83, 97, 148, 166, 194, 332, 388, 629, 1258, 1411, 1649, 2516, 2822, 3071, 3298, 3589, 5644, 6142, 6596, 7178, 8051, 12284, 14356, 16102, 32204, 52207, 61013, 104414, 122026, 136867, 208828, 244052, 273734, 297887, 547468, 595774, 1191548, 5064079, 10128158, 20256316]

約数ペア:

[(1, 20256316), (2, 10128158), (4, 5064079), (17, 1191548), (34, 595774), (37, 547468), (68, 297887), (74, 273734), (83, 244052), (97, 208828), (148, 136867), (166, 122026), (194, 104414), (332, 61013), (388, 52207), (629, 32204), (1258, 16102), (1411, 14356), (1649, 12284), (2516, 8051), (2822, 7178), (3071, 6596), (3298, 6142), (3589, 5644)]