1456240

素因数分解:

$2^4\times 5^1\times {\mathrm{109}}^1\times {\mathrm{167}}^1$

素因数の和:289

約数の個数: 40

約数和(自身を含む): 3437280

約数和(自身を除く): 1981040

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 109, 167, 218, 334, 436, 545, 668, 835, 872, 1090, 1336, 1670, 1744, 2180, 2672, 3340, 4360, 6680, 8720, 13360, 18203, 36406, 72812, 91015, 145624, 182030, 291248, 364060, 728120, 1456240]

約数ペア:

[(1, 1456240), (2, 728120), (4, 364060), (5, 291248), (8, 182030), (10, 145624), (16, 91015), (20, 72812), (40, 36406), (80, 18203), (109, 13360), (167, 8720), (218, 6680), (334, 4360), (436, 3340), (545, 2672), (668, 2180), (835, 1744), (872, 1670), (1090, 1336)]