289898420

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{911}}^1\times {\mathrm{2273}}^1$

素因数の和:3200

約数の個数: 48

約数和(自身を含む): 696826368

約数和(自身を除く): 406927948

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 911, 1822, 2273, 3644, 4546, 4555, 6377, 9092, 9110, 11365, 12754, 15911, 18220, 22730, 25508, 31822, 31885, 45460, 63644, 63770, 79555, 127540, 159110, 318220, 2070703, 4141406, 8282812, 10353515, 14494921, 20707030, 28989842, 41414060, 57979684, 72474605, 144949210, 289898420]

約数ペア:

[(1, 289898420), (2, 144949210), (4, 72474605), (5, 57979684), (7, 41414060), (10, 28989842), (14, 20707030), (20, 14494921), (28, 10353515), (35, 8282812), (70, 4141406), (140, 2070703), (911, 318220), (1822, 159110), (2273, 127540), (3644, 79555), (4546, 63770), (4555, 63644), (6377, 45460), (9092, 31885), (9110, 31822), (11365, 25508), (12754, 22730), (15911, 18220)]