20119385

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{1481}}^1$

素因数の和:1529

約数の個数: 32

約数和(自身を含む): 29877120

約数和(自身を除く): 9757735

約数列:

[1, 5, 11, 13, 19, 55, 65, 95, 143, 209, 247, 715, 1045, 1235, 1481, 2717, 7405, 13585, 16291, 19253, 28139, 81455, 96265, 140695, 211783, 309529, 365807, 1058915, 1547645, 1829035, 4023877, 20119385]

約数ペア:

[(1, 20119385), (5, 4023877), (11, 1829035), (13, 1547645), (19, 1058915), (55, 365807), (65, 309529), (95, 211783), (143, 140695), (209, 96265), (247, 81455), (715, 28139), (1045, 19253), (1235, 16291), (1481, 13585), (2717, 7405)]