15520505

素因数分解:

$5^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{443}}^1$

素因数の和:486

約数の個数: 48

約数和(自身を含む): 25510464

約数和(自身を除く): 9989959

約数列:

[1, 5, 7, 11, 13, 35, 49, 55, 65, 77, 91, 143, 245, 385, 443, 455, 539, 637, 715, 1001, 2215, 2695, 3101, 3185, 4873, 5005, 5759, 7007, 15505, 21707, 24365, 28795, 34111, 35035, 40313, 63349, 108535, 170555, 201565, 238777, 282191, 316745, 443443, 1193885, 1410955, 2217215, 3104101, 15520505]

約数ペア:

[(1, 15520505), (5, 3104101), (7, 2217215), (11, 1410955), (13, 1193885), (35, 443443), (49, 316745), (55, 282191), (65, 238777), (77, 201565), (91, 170555), (143, 108535), (245, 63349), (385, 40313), (443, 35035), (455, 34111), (539, 28795), (637, 24365), (715, 21707), (1001, 15505), (2215, 7007), (2695, 5759), (3101, 5005), (3185, 4873)]