20574112

素因数分解:

$2^5\times {\mathrm{13}}^1\times {\mathrm{19}}^2\times {\mathrm{137}}^1$

素因数の和:198

約数の個数: 72

約数和(自身を含む): 46373796

約数和(自身を除く): 25799684

約数列:

[1, 2, 4, 8, 13, 16, 19, 26, 32, 38, 52, 76, 104, 137, 152, 208, 247, 274, 304, 361, 416, 494, 548, 608, 722, 988, 1096, 1444, 1781, 1976, 2192, 2603, 2888, 3562, 3952, 4384, 4693, 5206, 5776, 7124, 7904, 9386, 10412, 11552, 14248, 18772, 20824, 28496, 33839, 37544, 41648, 49457, 56992, 67678, 75088, 83296, 98914, 135356, 150176, 197828, 270712, 395656, 541424, 642941, 791312, 1082848, 1285882, 1582624, 2571764, 5143528, 10287056, 20574112]

約数ペア:

[(1, 20574112), (2, 10287056), (4, 5143528), (8, 2571764), (13, 1582624), (16, 1285882), (19, 1082848), (26, 791312), (32, 642941), (38, 541424), (52, 395656), (76, 270712), (104, 197828), (137, 150176), (152, 135356), (208, 98914), (247, 83296), (274, 75088), (304, 67678), (361, 56992), (416, 49457), (494, 41648), (548, 37544), (608, 33839), (722, 28496), (988, 20824), (1096, 18772), (1444, 14248), (1781, 11552), (1976, 10412), (2192, 9386), (2603, 7904), (2888, 7124), (3562, 5776), (3952, 5206), (4384, 4693)]