640913742

素因数分解:

$2^1\times 3^3\times 7^1\times {\mathrm{89}}^1\times {\mathrm{19051}}^1$

素因数の和:19158

約数の個数: 64

約数和(自身を含む): 1646092800

約数和(自身を除く): 1005179058

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 27, 42, 54, 63, 89, 126, 178, 189, 267, 378, 534, 623, 801, 1246, 1602, 1869, 2403, 3738, 4806, 5607, 11214, 16821, 19051, 33642, 38102, 57153, 114306, 133357, 171459, 266714, 342918, 400071, 514377, 800142, 1028754, 1200213, 1695539, 2400426, 3391078, 3600639, 5086617, 7201278, 10173234, 11868773, 15259851, 23737546, 30519702, 35606319, 45779553, 71212638, 91559106, 106818957, 213637914, 320456871, 640913742]

約数ペア:

[(1, 640913742), (2, 320456871), (3, 213637914), (6, 106818957), (7, 91559106), (9, 71212638), (14, 45779553), (18, 35606319), (21, 30519702), (27, 23737546), (42, 15259851), (54, 11868773), (63, 10173234), (89, 7201278), (126, 5086617), (178, 3600639), (189, 3391078), (267, 2400426), (378, 1695539), (534, 1200213), (623, 1028754), (801, 800142), (1246, 514377), (1602, 400071), (1869, 342918), (2403, 266714), (3738, 171459), (4806, 133357), (5607, 114306), (11214, 57153), (16821, 38102), (19051, 33642)]