20465144

素因数分解:

$2^3\times 7^2\times {\mathrm{17}}^1\times {\mathrm{37}}^1\times {\mathrm{83}}^1$

素因数の和:157

約数の個数: 96

約数和(自身を含む): 49124880

約数和(自身を除く): 28659736

約数列:

[1, 2, 4, 7, 8, 14, 17, 28, 34, 37, 49, 56, 68, 74, 83, 98, 119, 136, 148, 166, 196, 238, 259, 296, 332, 392, 476, 518, 581, 629, 664, 833, 952, 1036, 1162, 1258, 1411, 1666, 1813, 2072, 2324, 2516, 2822, 3071, 3332, 3626, 4067, 4403, 4648, 5032, 5644, 6142, 6664, 7252, 8134, 8806, 9877, 11288, 12284, 14504, 16268, 17612, 19754, 21497, 24568, 30821, 32536, 35224, 39508, 42994, 52207, 61642, 69139, 79016, 85988, 104414, 123284, 138278, 150479, 171976, 208828, 246568, 276556, 300958, 365449, 417656, 553112, 601916, 730898, 1203832, 1461796, 2558143, 2923592, 5116286, 10232572, 20465144]

約数ペア:

[(1, 20465144), (2, 10232572), (4, 5116286), (7, 2923592), (8, 2558143), (14, 1461796), (17, 1203832), (28, 730898), (34, 601916), (37, 553112), (49, 417656), (56, 365449), (68, 300958), (74, 276556), (83, 246568), (98, 208828), (119, 171976), (136, 150479), (148, 138278), (166, 123284), (196, 104414), (238, 85988), (259, 79016), (296, 69139), (332, 61642), (392, 52207), (476, 42994), (518, 39508), (581, 35224), (629, 32536), (664, 30821), (833, 24568), (952, 21497), (1036, 19754), (1162, 17612), (1258, 16268), (1411, 14504), (1666, 12284), (1813, 11288), (2072, 9877), (2324, 8806), (2516, 8134), (2822, 7252), (3071, 6664), (3332, 6142), (3626, 5644), (4067, 5032), (4403, 4648)]