2005979240

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{347}}^1\times {\mathrm{3361}}^1$

素因数の和:3762

約数の個数: 64

約数和(自身を含む): 4633104960

約数和(自身を除く): 2627125720

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 86, 172, 215, 344, 347, 430, 694, 860, 1388, 1720, 1735, 2776, 3361, 3470, 6722, 6940, 13444, 13880, 14921, 16805, 26888, 29842, 33610, 59684, 67220, 74605, 119368, 134440, 144523, 149210, 289046, 298420, 578092, 596840, 722615, 1156184, 1166267, 1445230, 2332534, 2890460, 4665068, 5780920, 5831335, 9330136, 11662670, 23325340, 46650680, 50149481, 100298962, 200597924, 250747405, 401195848, 501494810, 1002989620, 2005979240]

約数ペア:

[(1, 2005979240), (2, 1002989620), (4, 501494810), (5, 401195848), (8, 250747405), (10, 200597924), (20, 100298962), (40, 50149481), (43, 46650680), (86, 23325340), (172, 11662670), (215, 9330136), (344, 5831335), (347, 5780920), (430, 4665068), (694, 2890460), (860, 2332534), (1388, 1445230), (1720, 1166267), (1735, 1156184), (2776, 722615), (3361, 596840), (3470, 578092), (6722, 298420), (6940, 289046), (13444, 149210), (13880, 144523), (14921, 134440), (16805, 119368), (26888, 74605), (29842, 67220), (33610, 59684)]