61985275

素因数分解:

$5^2\times {\mathrm{11}}^2\times {\mathrm{31}}^1\times {\mathrm{661}}^1$

素因数の和:724

約数の個数: 36

約数和(自身を含む): 87341632

約数和(自身を除く): 25356357

約数列:

[1, 5, 11, 25, 31, 55, 121, 155, 275, 341, 605, 661, 775, 1705, 3025, 3305, 3751, 7271, 8525, 16525, 18755, 20491, 36355, 79981, 93775, 102455, 181775, 225401, 399905, 512275, 1127005, 1999525, 2479411, 5635025, 12397055, 61985275]

約数ペア:

[(1, 61985275), (5, 12397055), (11, 5635025), (25, 2479411), (31, 1999525), (55, 1127005), (121, 512275), (155, 399905), (275, 225401), (341, 181775), (605, 102455), (661, 93775), (775, 79981), (1705, 36355), (3025, 20491), (3305, 18755), (3751, 16525), (7271, 8525)]