20179913615

素因数分解:

$5^1\times {\mathrm{41}}^1\times {\mathrm{239}}^1\times {\mathrm{419}}^1\times {\mathrm{983}}^1$

素因数の和:1687

約数の個数: 32

約数和(自身を含む): 24995174400

約数和(自身を除く): 4815260785

約数列:

[1, 5, 41, 205, 239, 419, 983, 1195, 2095, 4915, 9799, 17179, 40303, 48995, 85895, 100141, 201515, 234937, 411877, 500705, 1174685, 2059385, 4105781, 9632417, 16886957, 20528905, 48162085, 84434785, 98438603, 492193015, 4035982723, 20179913615]

約数ペア:

[(1, 20179913615), (5, 4035982723), (41, 492193015), (205, 98438603), (239, 84434785), (419, 48162085), (983, 20528905), (1195, 16886957), (2095, 9632417), (4915, 4105781), (9799, 2059385), (17179, 1174685), (40303, 500705), (48995, 411877), (85895, 234937), (100141, 201515)]