20804948325

素因数分解:

$3^2\times 5^2\times 7^1\times {\mathrm{47}}^1\times {\mathrm{281053}}^1$

素因数の和:281123

約数の個数: 72

約数和(自身を含む): 43493668608

約数和(自身を除く): 22688720283

約数列:

[1, 3, 5, 7, 9, 15, 21, 25, 35, 45, 47, 63, 75, 105, 141, 175, 225, 235, 315, 329, 423, 525, 705, 987, 1175, 1575, 1645, 2115, 2961, 3525, 4935, 8225, 10575, 14805, 24675, 74025, 281053, 843159, 1405265, 1967371, 2529477, 4215795, 5902113, 7026325, 9836855, 12647385, 13209491, 17706339, 21078975, 29510565, 39628473, 49184275, 63236925, 66047455, 88531695, 92466437, 118885419, 147552825, 198142365, 277399311, 330237275, 442658475, 462332185, 594427095, 832197933, 990711825, 1386996555, 2311660925, 2972135475, 4160989665, 6934982775, 20804948325]

約数ペア:

[(1, 20804948325), (3, 6934982775), (5, 4160989665), (7, 2972135475), (9, 2311660925), (15, 1386996555), (21, 990711825), (25, 832197933), (35, 594427095), (45, 462332185), (47, 442658475), (63, 330237275), (75, 277399311), (105, 198142365), (141, 147552825), (175, 118885419), (225, 92466437), (235, 88531695), (315, 66047455), (329, 63236925), (423, 49184275), (525, 39628473), (705, 29510565), (987, 21078975), (1175, 17706339), (1575, 13209491), (1645, 12647385), (2115, 9836855), (2961, 7026325), (3525, 5902113), (4935, 4215795), (8225, 2529477), (10575, 1967371), (14805, 1405265), (24675, 843159), (74025, 281053)]