289344880

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^2\times {\mathrm{71}}^1\times {\mathrm{421}}^1$

素因数の和:527

約数の個数: 120

約数和(自身を含む): 751639392

約数和(自身を除く): 462294512

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 71, 80, 88, 110, 121, 142, 176, 220, 242, 284, 355, 421, 440, 484, 568, 605, 710, 781, 842, 880, 968, 1136, 1210, 1420, 1562, 1684, 1936, 2105, 2420, 2840, 3124, 3368, 3905, 4210, 4631, 4840, 5680, 6248, 6736, 7810, 8420, 8591, 9262, 9680, 12496, 15620, 16840, 17182, 18524, 23155, 29891, 31240, 33680, 34364, 37048, 42955, 46310, 50941, 59782, 62480, 68728, 74096, 85910, 92620, 101882, 119564, 137456, 149455, 171820, 185240, 203764, 239128, 254705, 298910, 328801, 343640, 370480, 407528, 478256, 509410, 597820, 657602, 687280, 815056, 1018820, 1195640, 1315204, 1644005, 2037640, 2391280, 2630408, 3288010, 3616811, 4075280, 5260816, 6576020, 7233622, 13152040, 14467244, 18084055, 26304080, 28934488, 36168110, 57868976, 72336220, 144672440, 289344880]

約数ペア:

[(1, 289344880), (2, 144672440), (4, 72336220), (5, 57868976), (8, 36168110), (10, 28934488), (11, 26304080), (16, 18084055), (20, 14467244), (22, 13152040), (40, 7233622), (44, 6576020), (55, 5260816), (71, 4075280), (80, 3616811), (88, 3288010), (110, 2630408), (121, 2391280), (142, 2037640), (176, 1644005), (220, 1315204), (242, 1195640), (284, 1018820), (355, 815056), (421, 687280), (440, 657602), (484, 597820), (568, 509410), (605, 478256), (710, 407528), (781, 370480), (842, 343640), (880, 328801), (968, 298910), (1136, 254705), (1210, 239128), (1420, 203764), (1562, 185240), (1684, 171820), (1936, 149455), (2105, 137456), (2420, 119564), (2840, 101882), (3124, 92620), (3368, 85910), (3905, 74096), (4210, 68728), (4631, 62480), (4840, 59782), (5680, 50941), (6248, 46310), (6736, 42955), (7810, 37048), (8420, 34364), (8591, 33680), (9262, 31240), (9680, 29891), (12496, 23155), (15620, 18524), (16840, 17182)]