20625990

素因数分解:

$2^1\times 3^1\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{8929}}^1$

素因数の和:8957

約数の個数: 64

約数和(自身を含む): 61724160

約数和(自身を除く): 41098170

約数列:

[1, 2, 3, 5, 6, 7, 10, 11, 14, 15, 21, 22, 30, 33, 35, 42, 55, 66, 70, 77, 105, 110, 154, 165, 210, 231, 330, 385, 462, 770, 1155, 2310, 8929, 17858, 26787, 44645, 53574, 62503, 89290, 98219, 125006, 133935, 187509, 196438, 267870, 294657, 312515, 375018, 491095, 589314, 625030, 687533, 937545, 982190, 1375066, 1473285, 1875090, 2062599, 2946570, 3437665, 4125198, 6875330, 10312995, 20625990]

約数ペア:

[(1, 20625990), (2, 10312995), (3, 6875330), (5, 4125198), (6, 3437665), (7, 2946570), (10, 2062599), (11, 1875090), (14, 1473285), (15, 1375066), (21, 982190), (22, 937545), (30, 687533), (33, 625030), (35, 589314), (42, 491095), (55, 375018), (66, 312515), (70, 294657), (77, 267870), (105, 196438), (110, 187509), (154, 133935), (165, 125006), (210, 98219), (231, 89290), (330, 62503), (385, 53574), (462, 44645), (770, 26787), (1155, 17858), (2310, 8929)]