15489925

素因数分解:

$5^2\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{79}}^1$

素因数の和:154

約数の個数: 48

約数和(自身を含む): 22855680

約数和(自身を除く): 7365755

約数列:

[1, 5, 11, 23, 25, 31, 55, 79, 115, 155, 253, 275, 341, 395, 575, 713, 775, 869, 1265, 1705, 1817, 1975, 2449, 3565, 4345, 6325, 7843, 8525, 9085, 12245, 17825, 19987, 21725, 26939, 39215, 45425, 56327, 61225, 99935, 134695, 196075, 281635, 499675, 619597, 673475, 1408175, 3097985, 15489925]

約数ペア:

[(1, 15489925), (5, 3097985), (11, 1408175), (23, 673475), (25, 619597), (31, 499675), (55, 281635), (79, 196075), (115, 134695), (155, 99935), (253, 61225), (275, 56327), (341, 45425), (395, 39215), (575, 26939), (713, 21725), (775, 19987), (869, 17825), (1265, 12245), (1705, 9085), (1817, 8525), (1975, 7843), (2449, 6325), (3565, 4345)]