18811265

素因数分解:

$5^1\times {\mathrm{11}}^2\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{59}}^1$

素因数の和:134

約数の個数: 48

約数和(自身を含む): 27578880

約数和(自身を除く): 8767615

約数列:

[1, 5, 11, 17, 31, 55, 59, 85, 121, 155, 187, 295, 341, 527, 605, 649, 935, 1003, 1705, 1829, 2057, 2635, 3245, 3751, 5015, 5797, 7139, 9145, 10285, 11033, 18755, 20119, 28985, 31093, 35695, 55165, 63767, 100595, 121363, 155465, 221309, 318835, 342023, 606815, 1106545, 1710115, 3762253, 18811265]

約数ペア:

[(1, 18811265), (5, 3762253), (11, 1710115), (17, 1106545), (31, 606815), (55, 342023), (59, 318835), (85, 221309), (121, 155465), (155, 121363), (187, 100595), (295, 63767), (341, 55165), (527, 35695), (605, 31093), (649, 28985), (935, 20119), (1003, 18755), (1705, 11033), (1829, 10285), (2057, 9145), (2635, 7139), (3245, 5797), (3751, 5015)]