20145125

素因数分解:

$5^3\times 7^2\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1$

素因数の和:76

約数の個数: 96

約数和(自身を含む): 35852544

約数和(自身を除く): 15707419

約数列:

[1, 5, 7, 11, 13, 23, 25, 35, 49, 55, 65, 77, 91, 115, 125, 143, 161, 175, 245, 253, 275, 299, 325, 385, 455, 539, 575, 637, 715, 805, 875, 1001, 1127, 1225, 1265, 1375, 1495, 1625, 1771, 1925, 2093, 2275, 2695, 2875, 3185, 3289, 3575, 4025, 5005, 5635, 6125, 6325, 7007, 7475, 8855, 9625, 10465, 11375, 12397, 13475, 14651, 15925, 16445, 17875, 20125, 23023, 25025, 28175, 31625, 35035, 37375, 44275, 52325, 61985, 67375, 73255, 79625, 82225, 115115, 125125, 140875, 161161, 175175, 221375, 261625, 309925, 366275, 411125, 575575, 805805, 875875, 1549625, 1831375, 2877875, 4029025, 20145125]

約数ペア:

[(1, 20145125), (5, 4029025), (7, 2877875), (11, 1831375), (13, 1549625), (23, 875875), (25, 805805), (35, 575575), (49, 411125), (55, 366275), (65, 309925), (77, 261625), (91, 221375), (115, 175175), (125, 161161), (143, 140875), (161, 125125), (175, 115115), (245, 82225), (253, 79625), (275, 73255), (299, 67375), (325, 61985), (385, 52325), (455, 44275), (539, 37375), (575, 35035), (637, 31625), (715, 28175), (805, 25025), (875, 23023), (1001, 20125), (1127, 17875), (1225, 16445), (1265, 15925), (1375, 14651), (1495, 13475), (1625, 12397), (1771, 11375), (1925, 10465), (2093, 9625), (2275, 8855), (2695, 7475), (2875, 7007), (3185, 6325), (3289, 6125), (3575, 5635), (4025, 5005)]