19900968

素因数分解:

$2^3\times 3^1\times {\mathrm{37}}^1\times {\mathrm{73}}^1\times {\mathrm{307}}^1$

素因数の和:426

約数の個数: 64

約数和(自身を含む): 51965760

約数和(自身を除く): 32064792

約数列:

[1, 2, 3, 4, 6, 8, 12, 24, 37, 73, 74, 111, 146, 148, 219, 222, 292, 296, 307, 438, 444, 584, 614, 876, 888, 921, 1228, 1752, 1842, 2456, 2701, 3684, 5402, 7368, 8103, 10804, 11359, 16206, 21608, 22411, 22718, 32412, 34077, 44822, 45436, 64824, 67233, 68154, 89644, 90872, 134466, 136308, 179288, 268932, 272616, 537864, 829207, 1658414, 2487621, 3316828, 4975242, 6633656, 9950484, 19900968]

約数ペア:

[(1, 19900968), (2, 9950484), (3, 6633656), (4, 4975242), (6, 3316828), (8, 2487621), (12, 1658414), (24, 829207), (37, 537864), (73, 272616), (74, 268932), (111, 179288), (146, 136308), (148, 134466), (219, 90872), (222, 89644), (292, 68154), (296, 67233), (307, 64824), (438, 45436), (444, 44822), (584, 34077), (614, 32412), (876, 22718), (888, 22411), (921, 21608), (1228, 16206), (1752, 11359), (1842, 10804), (2456, 8103), (2701, 7368), (3684, 5402)]