1408223720

素因数分解:

$2^3\times 5^1\times {\mathrm{41}}^1\times {\mathrm{858673}}^1$

素因数の和:858725

約数の個数: 32

約数和(自身を含む): 3245787720

約数和(自身を除く): 1837564000

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 41, 82, 164, 205, 328, 410, 820, 1640, 858673, 1717346, 3434692, 4293365, 6869384, 8586730, 17173460, 34346920, 35205593, 70411186, 140822372, 176027965, 281644744, 352055930, 704111860, 1408223720]

約数ペア:

[(1, 1408223720), (2, 704111860), (4, 352055930), (5, 281644744), (8, 176027965), (10, 140822372), (20, 70411186), (40, 35205593), (41, 34346920), (82, 17173460), (164, 8586730), (205, 6869384), (328, 4293365), (410, 3434692), (820, 1717346), (1640, 858673)]