20659275

素因数分解:

$3^2\times 5^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{1009}}^1$

素因数の和:1045

約数の個数: 72

約数和(自身を含む): 45587360

約数和(自身を除く): 24928085

約数列:

[1, 3, 5, 7, 9, 13, 15, 21, 25, 35, 39, 45, 63, 65, 75, 91, 105, 117, 175, 195, 225, 273, 315, 325, 455, 525, 585, 819, 975, 1009, 1365, 1575, 2275, 2925, 3027, 4095, 5045, 6825, 7063, 9081, 13117, 15135, 20475, 21189, 25225, 35315, 39351, 45405, 63567, 65585, 75675, 91819, 105945, 118053, 176575, 196755, 227025, 275457, 317835, 327925, 459095, 529725, 590265, 826371, 983775, 1377285, 1589175, 2295475, 2951325, 4131855, 6886425, 20659275]

約数ペア:

[(1, 20659275), (3, 6886425), (5, 4131855), (7, 2951325), (9, 2295475), (13, 1589175), (15, 1377285), (21, 983775), (25, 826371), (35, 590265), (39, 529725), (45, 459095), (63, 327925), (65, 317835), (75, 275457), (91, 227025), (105, 196755), (117, 176575), (175, 118053), (195, 105945), (225, 91819), (273, 75675), (315, 65585), (325, 63567), (455, 45405), (525, 39351), (585, 35315), (819, 25225), (975, 21189), (1009, 20475), (1365, 15135), (1575, 13117), (2275, 9081), (2925, 7063), (3027, 6825), (4095, 5045)]