156988225

素因数分解:

$5^2\times {\mathrm{23}}^1\times {\mathrm{37}}^1\times {\mathrm{47}}^1\times {\mathrm{157}}^1$

素因数の和:274

約数の個数: 48

約数和(自身を含む): 214414848

約数和(自身を除く): 57426623

約数列:

[1, 5, 23, 25, 37, 47, 115, 157, 185, 235, 575, 785, 851, 925, 1081, 1175, 1739, 3611, 3925, 4255, 5405, 5809, 7379, 8695, 18055, 21275, 27025, 29045, 36895, 39997, 43475, 90275, 133607, 145225, 169717, 184475, 199985, 273023, 668035, 848585, 999925, 1365115, 3340175, 4242925, 6279529, 6825575, 31397645, 156988225]

約数ペア:

[(1, 156988225), (5, 31397645), (23, 6825575), (25, 6279529), (37, 4242925), (47, 3340175), (115, 1365115), (157, 999925), (185, 848585), (235, 668035), (575, 273023), (785, 199985), (851, 184475), (925, 169717), (1081, 145225), (1175, 133607), (1739, 90275), (3611, 43475), (3925, 39997), (4255, 36895), (5405, 29045), (5809, 27025), (7379, 21275), (8695, 18055)]