2207440

素因数分解:

$2^4\times 5^1\times {\mathrm{41}}^1\times {\mathrm{673}}^1$

素因数の和:727

約数の個数: 40

約数和(自身を含む): 5265288

約数和(自身を除く): 3057848

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 41, 80, 82, 164, 205, 328, 410, 656, 673, 820, 1346, 1640, 2692, 3280, 3365, 5384, 6730, 10768, 13460, 26920, 27593, 53840, 55186, 110372, 137965, 220744, 275930, 441488, 551860, 1103720, 2207440]

約数ペア:

[(1, 2207440), (2, 1103720), (4, 551860), (5, 441488), (8, 275930), (10, 220744), (16, 137965), (20, 110372), (40, 55186), (41, 53840), (80, 27593), (82, 26920), (164, 13460), (205, 10768), (328, 6730), (410, 5384), (656, 3365), (673, 3280), (820, 2692), (1346, 1640)]