71146480

素因数分解:

$2^4\times 5^1\times {\mathrm{41}}^1\times {\mathrm{109}}^1\times {\mathrm{199}}^1$

素因数の和:362

約数の個数: 80

約数和(自身を含む): 171864000

約数和(自身を除く): 100717520

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 41, 80, 82, 109, 164, 199, 205, 218, 328, 398, 410, 436, 545, 656, 796, 820, 872, 995, 1090, 1592, 1640, 1744, 1990, 2180, 3184, 3280, 3980, 4360, 4469, 7960, 8159, 8720, 8938, 15920, 16318, 17876, 21691, 22345, 32636, 35752, 40795, 43382, 44690, 65272, 71504, 81590, 86764, 89380, 108455, 130544, 163180, 173528, 178760, 216910, 326360, 347056, 357520, 433820, 652720, 867640, 889331, 1735280, 1778662, 3557324, 4446655, 7114648, 8893310, 14229296, 17786620, 35573240, 71146480]

約数ペア:

[(1, 71146480), (2, 35573240), (4, 17786620), (5, 14229296), (8, 8893310), (10, 7114648), (16, 4446655), (20, 3557324), (40, 1778662), (41, 1735280), (80, 889331), (82, 867640), (109, 652720), (164, 433820), (199, 357520), (205, 347056), (218, 326360), (328, 216910), (398, 178760), (410, 173528), (436, 163180), (545, 130544), (656, 108455), (796, 89380), (820, 86764), (872, 81590), (995, 71504), (1090, 65272), (1592, 44690), (1640, 43382), (1744, 40795), (1990, 35752), (2180, 32636), (3184, 22345), (3280, 21691), (3980, 17876), (4360, 16318), (4469, 15920), (7960, 8938), (8159, 8720)]