20802375

素因数分解:

$3^2\times 5^3\times {\mathrm{11}}^1\times {\mathrm{41}}^2$

素因数の和:114

約数の個数: 72

約数和(自身を含む): 41930928

約数和(自身を除く): 21128553

約数列:

[1, 3, 5, 9, 11, 15, 25, 33, 41, 45, 55, 75, 99, 123, 125, 165, 205, 225, 275, 369, 375, 451, 495, 615, 825, 1025, 1125, 1353, 1375, 1681, 1845, 2255, 2475, 3075, 4059, 4125, 5043, 5125, 6765, 8405, 9225, 11275, 12375, 15129, 15375, 18491, 20295, 25215, 33825, 42025, 46125, 55473, 56375, 75645, 92455, 101475, 126075, 166419, 169125, 210125, 277365, 378225, 462275, 507375, 630375, 832095, 1386825, 1891125, 2311375, 4160475, 6934125, 20802375]

約数ペア:

[(1, 20802375), (3, 6934125), (5, 4160475), (9, 2311375), (11, 1891125), (15, 1386825), (25, 832095), (33, 630375), (41, 507375), (45, 462275), (55, 378225), (75, 277365), (99, 210125), (123, 169125), (125, 166419), (165, 126075), (205, 101475), (225, 92455), (275, 75645), (369, 56375), (375, 55473), (451, 46125), (495, 42025), (615, 33825), (825, 25215), (1025, 20295), (1125, 18491), (1353, 15375), (1375, 15129), (1681, 12375), (1845, 11275), (2255, 9225), (2475, 8405), (3075, 6765), (4059, 5125), (4125, 5043)]