1369040

素因数分解:

$2^4\times 5^1\times {\mathrm{109}}^1\times {\mathrm{157}}^1$

素因数の和:279

約数の個数: 40

約数和(自身を含む): 3232680

約数和(自身を除く): 1863640

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 109, 157, 218, 314, 436, 545, 628, 785, 872, 1090, 1256, 1570, 1744, 2180, 2512, 3140, 4360, 6280, 8720, 12560, 17113, 34226, 68452, 85565, 136904, 171130, 273808, 342260, 684520, 1369040]

約数ペア:

[(1, 1369040), (2, 684520), (4, 342260), (5, 273808), (8, 171130), (10, 136904), (16, 85565), (20, 68452), (40, 34226), (80, 17113), (109, 12560), (157, 8720), (218, 6280), (314, 4360), (436, 3140), (545, 2512), (628, 2180), (785, 1744), (872, 1570), (1090, 1256)]