77628840

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{389}}^1\times {\mathrm{1663}}^1$

素因数の和:2066

約数の個数: 64

約数和(自身を含む): 233625600

約数和(自身を除く): 155996760

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120, 389, 778, 1167, 1556, 1663, 1945, 2334, 3112, 3326, 3890, 4668, 4989, 5835, 6652, 7780, 8315, 9336, 9978, 11670, 13304, 15560, 16630, 19956, 23340, 24945, 33260, 39912, 46680, 49890, 66520, 99780, 199560, 646907, 1293814, 1940721, 2587628, 3234535, 3881442, 5175256, 6469070, 7762884, 9703605, 12938140, 15525768, 19407210, 25876280, 38814420, 77628840]

約数ペア:

[(1, 77628840), (2, 38814420), (3, 25876280), (4, 19407210), (5, 15525768), (6, 12938140), (8, 9703605), (10, 7762884), (12, 6469070), (15, 5175256), (20, 3881442), (24, 3234535), (30, 2587628), (40, 1940721), (60, 1293814), (120, 646907), (389, 199560), (778, 99780), (1167, 66520), (1556, 49890), (1663, 46680), (1945, 39912), (2334, 33260), (3112, 24945), (3326, 23340), (3890, 19956), (4668, 16630), (4989, 15560), (5835, 13304), (6652, 11670), (7780, 9978), (8315, 9336)]