2019339985

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{42499}}^1$

素因数の和:42577

約数の個数: 32

約数和(自身を含む): 2827440000

約数和(自身を除く): 808100015

約数列:

[1, 5, 13, 17, 43, 65, 85, 215, 221, 559, 731, 1105, 2795, 3655, 9503, 42499, 47515, 212495, 552487, 722483, 1827457, 2762435, 3612415, 9137285, 9392279, 23756941, 31066769, 46961395, 118784705, 155333845, 403867997, 2019339985]

約数ペア:

[(1, 2019339985), (5, 403867997), (13, 155333845), (17, 118784705), (43, 46961395), (65, 31066769), (85, 23756941), (215, 9392279), (221, 9137285), (559, 3612415), (731, 2762435), (1105, 1827457), (2795, 722483), (3655, 552487), (9503, 212495), (42499, 47515)]