18000010

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{8867}}^1$

素因数の和:8910

約数の個数: 32

約数和(自身を含む): 38309760

約数和(自身を除く): 20309750

約数列:

[1, 2, 5, 7, 10, 14, 29, 35, 58, 70, 145, 203, 290, 406, 1015, 2030, 8867, 17734, 44335, 62069, 88670, 124138, 257143, 310345, 514286, 620690, 1285715, 1800001, 2571430, 3600002, 9000005, 18000010]

約数ペア:

[(1, 18000010), (2, 9000005), (5, 3600002), (7, 2571430), (10, 1800001), (14, 1285715), (29, 620690), (35, 514286), (58, 310345), (70, 257143), (145, 124138), (203, 88670), (290, 62069), (406, 44335), (1015, 17734), (2030, 8867)]