20641569325

素因数分解:

$5^2\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{1061}}^1\times {\mathrm{1931}}^1$

素因数の和:3046

約数の個数: 48

約数和(自身を含む): 28495176192

約数和(自身を除く): 7853606867

約数列:

[1, 5, 13, 25, 31, 65, 155, 325, 403, 775, 1061, 1931, 2015, 5305, 9655, 10075, 13793, 25103, 26525, 32891, 48275, 59861, 68965, 125515, 164455, 299305, 344825, 427583, 627575, 778193, 822275, 1496525, 2048791, 2137915, 3890965, 10243955, 10689575, 19454825, 26634283, 51219775, 63512521, 133171415, 317562605, 665857075, 825662773, 1587813025, 4128313865, 20641569325]

約数ペア:

[(1, 20641569325), (5, 4128313865), (13, 1587813025), (25, 825662773), (31, 665857075), (65, 317562605), (155, 133171415), (325, 63512521), (403, 51219775), (775, 26634283), (1061, 19454825), (1931, 10689575), (2015, 10243955), (5305, 3890965), (9655, 2137915), (10075, 2048791), (13793, 1496525), (25103, 822275), (26525, 778193), (32891, 627575), (48275, 427583), (59861, 344825), (68965, 299305), (125515, 164455)]