619120

素因数分解:

$2^4\times 5^1\times {\mathrm{71}}^1\times {\mathrm{109}}^1$

素因数の和:193

約数の個数: 40

約数和(自身を含む): 1473120

約数和(自身を除く): 854000

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 71, 80, 109, 142, 218, 284, 355, 436, 545, 568, 710, 872, 1090, 1136, 1420, 1744, 2180, 2840, 4360, 5680, 7739, 8720, 15478, 30956, 38695, 61912, 77390, 123824, 154780, 309560, 619120]

約数ペア:

[(1, 619120), (2, 309560), (4, 154780), (5, 123824), (8, 77390), (10, 61912), (16, 38695), (20, 30956), (40, 15478), (71, 8720), (80, 7739), (109, 5680), (142, 4360), (218, 2840), (284, 2180), (355, 1744), (436, 1420), (545, 1136), (568, 1090), (710, 872)]