18363160

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{59}}^1\times {\mathrm{251}}^1$

素因数の和:352

約数の個数: 64

約数和(自身を含む): 43545600

約数和(自身を除く): 25182440

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 59, 62, 118, 124, 155, 236, 248, 251, 295, 310, 472, 502, 590, 620, 1004, 1180, 1240, 1255, 1829, 2008, 2360, 2510, 3658, 5020, 7316, 7781, 9145, 10040, 14632, 14809, 15562, 18290, 29618, 31124, 36580, 38905, 59236, 62248, 73160, 74045, 77810, 118472, 148090, 155620, 296180, 311240, 459079, 592360, 918158, 1836316, 2295395, 3672632, 4590790, 9181580, 18363160]

約数ペア:

[(1, 18363160), (2, 9181580), (4, 4590790), (5, 3672632), (8, 2295395), (10, 1836316), (20, 918158), (31, 592360), (40, 459079), (59, 311240), (62, 296180), (118, 155620), (124, 148090), (155, 118472), (236, 77810), (248, 74045), (251, 73160), (295, 62248), (310, 59236), (472, 38905), (502, 36580), (590, 31124), (620, 29618), (1004, 18290), (1180, 15562), (1240, 14809), (1255, 14632), (1829, 10040), (2008, 9145), (2360, 7781), (2510, 7316), (3658, 5020)]