138977210

素因数分解:

$2^1\times 5^1\times {\mathrm{17}}^2\times {\mathrm{19}}^1\times {\mathrm{2531}}^1$

素因数の和:2591

約数の個数: 48

約数和(自身を含む): 279836640

約数和(自身を除く): 140859430

約数列:

[1, 2, 5, 10, 17, 19, 34, 38, 85, 95, 170, 190, 289, 323, 578, 646, 1445, 1615, 2531, 2890, 3230, 5062, 5491, 10982, 12655, 25310, 27455, 43027, 48089, 54910, 86054, 96178, 215135, 240445, 430270, 480890, 731459, 817513, 1462918, 1635026, 3657295, 4087565, 7314590, 8175130, 13897721, 27795442, 69488605, 138977210]

約数ペア:

[(1, 138977210), (2, 69488605), (5, 27795442), (10, 13897721), (17, 8175130), (19, 7314590), (34, 4087565), (38, 3657295), (85, 1635026), (95, 1462918), (170, 817513), (190, 731459), (289, 480890), (323, 430270), (578, 240445), (646, 215135), (1445, 96178), (1615, 86054), (2531, 54910), (2890, 48089), (3230, 43027), (5062, 27455), (5491, 25310), (10982, 12655)]