19716768

素因数分解:

$2^5\times 3^2\times {\mathrm{223}}^1\times {\mathrm{307}}^1$

素因数の和:546

約数の個数: 72

約数和(自身を含む): 56504448

約数和(自身を除く): 36787680

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 32, 36, 48, 72, 96, 144, 223, 288, 307, 446, 614, 669, 892, 921, 1228, 1338, 1784, 1842, 2007, 2456, 2676, 2763, 3568, 3684, 4014, 4912, 5352, 5526, 7136, 7368, 8028, 9824, 10704, 11052, 14736, 16056, 21408, 22104, 29472, 32112, 44208, 64224, 68461, 88416, 136922, 205383, 273844, 410766, 547688, 616149, 821532, 1095376, 1232298, 1643064, 2190752, 2464596, 3286128, 4929192, 6572256, 9858384, 19716768]

約数ペア:

[(1, 19716768), (2, 9858384), (3, 6572256), (4, 4929192), (6, 3286128), (8, 2464596), (9, 2190752), (12, 1643064), (16, 1232298), (18, 1095376), (24, 821532), (32, 616149), (36, 547688), (48, 410766), (72, 273844), (96, 205383), (144, 136922), (223, 88416), (288, 68461), (307, 64224), (446, 44208), (614, 32112), (669, 29472), (892, 22104), (921, 21408), (1228, 16056), (1338, 14736), (1784, 11052), (1842, 10704), (2007, 9824), (2456, 8028), (2676, 7368), (2763, 7136), (3568, 5526), (3684, 5352), (4014, 4912)]