18377775

素因数分解:

$3^2\times 5^2\times {\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{103}}^1$

素因数の和:193

約数の個数: 72

約数和(自身を含む): 36379616

約数和(自身を除く): 18001841

約数列:

[1, 3, 5, 9, 13, 15, 25, 39, 45, 61, 65, 75, 103, 117, 183, 195, 225, 305, 309, 325, 515, 549, 585, 793, 915, 927, 975, 1339, 1525, 1545, 2379, 2575, 2745, 2925, 3965, 4017, 4575, 4635, 6283, 6695, 7137, 7725, 11895, 12051, 13725, 18849, 19825, 20085, 23175, 31415, 33475, 35685, 56547, 59475, 60255, 81679, 94245, 100425, 157075, 178425, 245037, 282735, 301275, 408395, 471225, 735111, 1225185, 1413675, 2041975, 3675555, 6125925, 18377775]

約数ペア:

[(1, 18377775), (3, 6125925), (5, 3675555), (9, 2041975), (13, 1413675), (15, 1225185), (25, 735111), (39, 471225), (45, 408395), (61, 301275), (65, 282735), (75, 245037), (103, 178425), (117, 157075), (183, 100425), (195, 94245), (225, 81679), (305, 60255), (309, 59475), (325, 56547), (515, 35685), (549, 33475), (585, 31415), (793, 23175), (915, 20085), (927, 19825), (975, 18849), (1339, 13725), (1525, 12051), (1545, 11895), (2379, 7725), (2575, 7137), (2745, 6695), (2925, 6283), (3965, 4635), (4017, 4575)]