640464444

素因数分解:

$2^2\times 3^2\times {\mathrm{41}}^1\times {\mathrm{619}}^1\times {\mathrm{701}}^1$

素因数の和:1371

約数の個数: 72

約数和(自身を含む): 1663487280

約数和(自身を除く): 1023022836

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 41, 82, 123, 164, 246, 369, 492, 619, 701, 738, 1238, 1402, 1476, 1857, 2103, 2476, 2804, 3714, 4206, 5571, 6309, 7428, 8412, 11142, 12618, 22284, 25236, 25379, 28741, 50758, 57482, 76137, 86223, 101516, 114964, 152274, 172446, 228411, 258669, 304548, 344892, 433919, 456822, 517338, 867838, 913644, 1034676, 1301757, 1735676, 2603514, 3905271, 5207028, 7810542, 15621084, 17790679, 35581358, 53372037, 71162716, 106744074, 160116111, 213488148, 320232222, 640464444]

約数ペア:

[(1, 640464444), (2, 320232222), (3, 213488148), (4, 160116111), (6, 106744074), (9, 71162716), (12, 53372037), (18, 35581358), (36, 17790679), (41, 15621084), (82, 7810542), (123, 5207028), (164, 3905271), (246, 2603514), (369, 1735676), (492, 1301757), (619, 1034676), (701, 913644), (738, 867838), (1238, 517338), (1402, 456822), (1476, 433919), (1857, 344892), (2103, 304548), (2476, 258669), (2804, 228411), (3714, 172446), (4206, 152274), (5571, 114964), (6309, 101516), (7428, 86223), (8412, 76137), (11142, 57482), (12618, 50758), (22284, 28741), (25236, 25379)]