129331100

素因数分解:

$2^2\times 5^2\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{1583}}^1$

素因数の和:1659

約数の個数: 72

約数和(自身を含む): 302480640

約数和(自身を除く): 173149540

約数列:

[1, 2, 4, 5, 10, 19, 20, 25, 38, 43, 50, 76, 86, 95, 100, 172, 190, 215, 380, 430, 475, 817, 860, 950, 1075, 1583, 1634, 1900, 2150, 3166, 3268, 4085, 4300, 6332, 7915, 8170, 15830, 16340, 20425, 30077, 31660, 39575, 40850, 60154, 68069, 79150, 81700, 120308, 136138, 150385, 158300, 272276, 300770, 340345, 601540, 680690, 751925, 1293311, 1361380, 1503850, 1701725, 2586622, 3007700, 3403450, 5173244, 6466555, 6806900, 12933110, 25866220, 32332775, 64665550, 129331100]

約数ペア:

[(1, 129331100), (2, 64665550), (4, 32332775), (5, 25866220), (10, 12933110), (19, 6806900), (20, 6466555), (25, 5173244), (38, 3403450), (43, 3007700), (50, 2586622), (76, 1701725), (86, 1503850), (95, 1361380), (100, 1293311), (172, 751925), (190, 680690), (215, 601540), (380, 340345), (430, 300770), (475, 272276), (817, 158300), (860, 150385), (950, 136138), (1075, 120308), (1583, 81700), (1634, 79150), (1900, 68069), (2150, 60154), (3166, 40850), (3268, 39575), (4085, 31660), (4300, 30077), (6332, 20425), (7915, 16340), (8170, 15830)]