201021925

素因数分解:

$5^2\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{73}}^1\times {\mathrm{229}}^1$

素因数の和:362

約数の個数: 48

約数和(自身を含む): 280693840

約数和(自身を除く): 79671915

約数列:

[1, 5, 13, 25, 37, 65, 73, 185, 229, 325, 365, 481, 925, 949, 1145, 1825, 2405, 2701, 2977, 4745, 5725, 8473, 12025, 13505, 14885, 16717, 23725, 35113, 42365, 67525, 74425, 83585, 110149, 175565, 211825, 217321, 417925, 550745, 618529, 877825, 1086605, 2753725, 3092645, 5433025, 8040877, 15463225, 40204385, 201021925]

約数ペア:

[(1, 201021925), (5, 40204385), (13, 15463225), (25, 8040877), (37, 5433025), (65, 3092645), (73, 2753725), (185, 1086605), (229, 877825), (325, 618529), (365, 550745), (481, 417925), (925, 217321), (949, 211825), (1145, 175565), (1825, 110149), (2405, 83585), (2701, 74425), (2977, 67525), (4745, 42365), (5725, 35113), (8473, 23725), (12025, 16717), (13505, 14885)]