19618860

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{79}}^1\times {\mathrm{4139}}^1$

素因数の和:4230

約数の個数: 48

約数和(自身を含む): 55641600

約数和(自身を除く): 36022740

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 79, 158, 237, 316, 395, 474, 790, 948, 1185, 1580, 2370, 4139, 4740, 8278, 12417, 16556, 20695, 24834, 41390, 49668, 62085, 82780, 124170, 248340, 326981, 653962, 980943, 1307924, 1634905, 1961886, 3269810, 3923772, 4904715, 6539620, 9809430, 19618860]

約数ペア:

[(1, 19618860), (2, 9809430), (3, 6539620), (4, 4904715), (5, 3923772), (6, 3269810), (10, 1961886), (12, 1634905), (15, 1307924), (20, 980943), (30, 653962), (60, 326981), (79, 248340), (158, 124170), (237, 82780), (316, 62085), (395, 49668), (474, 41390), (790, 24834), (948, 20695), (1185, 16556), (1580, 12417), (2370, 8278), (4139, 4740)]