1216967560

素因数分解:

$2^3\times 5^1\times {\mathrm{109}}^1\times {\mathrm{279121}}^1$

素因数の和:279241

約数の個数: 32

約数和(自身を含む): 2763307800

約数和(自身を除く): 1546340240

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 109, 218, 436, 545, 872, 1090, 2180, 4360, 279121, 558242, 1116484, 1395605, 2232968, 2791210, 5582420, 11164840, 30424189, 60848378, 121696756, 152120945, 243393512, 304241890, 608483780, 1216967560]

約数ペア:

[(1, 1216967560), (2, 608483780), (4, 304241890), (5, 243393512), (8, 152120945), (10, 121696756), (20, 60848378), (40, 30424189), (109, 11164840), (218, 5582420), (436, 2791210), (545, 2232968), (872, 1395605), (1090, 1116484), (2180, 558242), (4360, 279121)]