18980493553420

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{109}}^1\times {\mathrm{1243806917}}^1$

素因数の和:1243807042

約数の個数: 48

約数和(自身を含む): 45971103689280

約数和(自身を除く): 26990610135860

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 109, 140, 218, 436, 545, 763, 1090, 1526, 2180, 3052, 3815, 7630, 15260, 1243806917, 2487613834, 4975227668, 6219034585, 8706648419, 12438069170, 17413296838, 24876138340, 34826593676, 43533242095, 87066484190, 135574953953, 174132968380, 271149907906, 542299815812, 677874769765, 949024677671, 1355749539530, 1898049355342, 2711499079060, 3796098710684, 4745123388355, 9490246776710, 18980493553420]

約数ペア:

[(1, 18980493553420), (2, 9490246776710), (4, 4745123388355), (5, 3796098710684), (7, 2711499079060), (10, 1898049355342), (14, 1355749539530), (20, 949024677671), (28, 677874769765), (35, 542299815812), (70, 271149907906), (109, 174132968380), (140, 135574953953), (218, 87066484190), (436, 43533242095), (545, 34826593676), (763, 24876138340), (1090, 17413296838), (1526, 12438069170), (2180, 8706648419), (3052, 6219034585), (3815, 4975227668), (7630, 2487613834), (15260, 1243806917)]