128172940

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{569}}^1\times {\mathrm{1609}}^1$

素因数の和:2194

約数の個数: 48

約数和(自身を含む): 308347200

約数和(自身を除く): 180174260

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 569, 1138, 1609, 2276, 2845, 3218, 3983, 5690, 6436, 7966, 8045, 11263, 11380, 15932, 16090, 19915, 22526, 32180, 39830, 45052, 56315, 79660, 112630, 225260, 915521, 1831042, 3662084, 4577605, 6408647, 9155210, 12817294, 18310420, 25634588, 32043235, 64086470, 128172940]

約数ペア:

[(1, 128172940), (2, 64086470), (4, 32043235), (5, 25634588), (7, 18310420), (10, 12817294), (14, 9155210), (20, 6408647), (28, 4577605), (35, 3662084), (70, 1831042), (140, 915521), (569, 225260), (1138, 112630), (1609, 79660), (2276, 56315), (2845, 45052), (3218, 39830), (3983, 32180), (5690, 22526), (6436, 19915), (7966, 16090), (8045, 15932), (11263, 11380)]