204870890

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{127249}}^1$

素因数の和:127286

約数の個数: 32

約数和(自身を含む): 439776000

約数和(自身を除く): 234905110

約数列:

[1, 2, 5, 7, 10, 14, 23, 35, 46, 70, 115, 161, 230, 322, 805, 1610, 127249, 254498, 636245, 890743, 1272490, 1781486, 2926727, 4453715, 5853454, 8907430, 14633635, 20487089, 29267270, 40974178, 102435445, 204870890]

約数ペア:

[(1, 204870890), (2, 102435445), (5, 40974178), (7, 29267270), (10, 20487089), (14, 14633635), (23, 8907430), (35, 5853454), (46, 4453715), (70, 2926727), (115, 1781486), (161, 1272490), (230, 890743), (322, 636245), (805, 254498), (1610, 127249)]