38519975

素因数分解:

$5^2\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{61}}^1\times {\mathrm{67}}^1$

素因数の和:180

約数の個数: 48

約数和(自身を含む): 54892320

約数和(自身を除く): 16372345

約数列:

[1, 5, 13, 25, 29, 61, 65, 67, 145, 305, 325, 335, 377, 725, 793, 871, 1525, 1675, 1769, 1885, 1943, 3965, 4087, 4355, 8845, 9425, 9715, 19825, 20435, 21775, 22997, 25259, 44225, 48575, 53131, 102175, 114985, 118523, 126295, 265655, 574925, 592615, 631475, 1328275, 1540799, 2963075, 7703995, 38519975]

約数ペア:

[(1, 38519975), (5, 7703995), (13, 2963075), (25, 1540799), (29, 1328275), (61, 631475), (65, 592615), (67, 574925), (145, 265655), (305, 126295), (325, 118523), (335, 114985), (377, 102175), (725, 53131), (793, 48575), (871, 44225), (1525, 25259), (1675, 22997), (1769, 21775), (1885, 20435), (1943, 19825), (3965, 9715), (4087, 9425), (4355, 8845)]