686372620

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{71}}^1\times {\mathrm{28433}}^1$

素因数の和:28530

約数の個数: 48

約数和(自身を含む): 1547719488

約数和(自身を除く): 861346868

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 71, 85, 142, 170, 284, 340, 355, 710, 1207, 1420, 2414, 4828, 6035, 12070, 24140, 28433, 56866, 113732, 142165, 284330, 483361, 568660, 966722, 1933444, 2018743, 2416805, 4037486, 4833610, 8074972, 9667220, 10093715, 20187430, 34318631, 40374860, 68637262, 137274524, 171593155, 343186310, 686372620]

約数ペア:

[(1, 686372620), (2, 343186310), (4, 171593155), (5, 137274524), (10, 68637262), (17, 40374860), (20, 34318631), (34, 20187430), (68, 10093715), (71, 9667220), (85, 8074972), (142, 4833610), (170, 4037486), (284, 2416805), (340, 2018743), (355, 1933444), (710, 966722), (1207, 568660), (1420, 483361), (2414, 284330), (4828, 142165), (6035, 113732), (12070, 56866), (24140, 28433)]