28178865

素因数分解:

$3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{151}}^1$

素因数の和:215

約数の個数: 96

約数和(自身を含む): 59754240

約数和(自身を除く): 31575375

約数列:

[1, 3, 5, 9, 11, 13, 15, 29, 33, 39, 45, 55, 65, 87, 99, 117, 143, 145, 151, 165, 195, 261, 319, 377, 429, 435, 453, 495, 585, 715, 755, 957, 1131, 1287, 1305, 1359, 1595, 1661, 1885, 1963, 2145, 2265, 2871, 3393, 4147, 4379, 4785, 4983, 5655, 5889, 6435, 6795, 8305, 9815, 12441, 13137, 14355, 14949, 16965, 17667, 20735, 21593, 21895, 24915, 29445, 37323, 39411, 48169, 56927, 62205, 64779, 65685, 74745, 88335, 107965, 144507, 170781, 186615, 194337, 197055, 240845, 284635, 323895, 433521, 512343, 626197, 722535, 853905, 971685, 1878591, 2167605, 2561715, 3130985, 5635773, 9392955, 28178865]

約数ペア:

[(1, 28178865), (3, 9392955), (5, 5635773), (9, 3130985), (11, 2561715), (13, 2167605), (15, 1878591), (29, 971685), (33, 853905), (39, 722535), (45, 626197), (55, 512343), (65, 433521), (87, 323895), (99, 284635), (117, 240845), (143, 197055), (145, 194337), (151, 186615), (165, 170781), (195, 144507), (261, 107965), (319, 88335), (377, 74745), (429, 65685), (435, 64779), (453, 62205), (495, 56927), (585, 48169), (715, 39411), (755, 37323), (957, 29445), (1131, 24915), (1287, 21895), (1305, 21593), (1359, 20735), (1595, 17667), (1661, 16965), (1885, 14949), (1963, 14355), (2145, 13137), (2265, 12441), (2871, 9815), (3393, 8305), (4147, 6795), (4379, 6435), (4785, 5889), (4983, 5655)]