402743240

素因数分解:

$2^3\times 5^1\times {\mathrm{71}}^1\times {\mathrm{141811}}^1$

素因数の和:141893

約数の個数: 32

約数和(自身を含む): 918941760

約数和(自身を除く): 516198520

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 71, 142, 284, 355, 568, 710, 1420, 2840, 141811, 283622, 567244, 709055, 1134488, 1418110, 2836220, 5672440, 10068581, 20137162, 40274324, 50342905, 80548648, 100685810, 201371620, 402743240]

約数ペア:

[(1, 402743240), (2, 201371620), (4, 100685810), (5, 80548648), (8, 50342905), (10, 40274324), (20, 20137162), (40, 10068581), (71, 5672440), (142, 2836220), (284, 1418110), (355, 1134488), (568, 709055), (710, 567244), (1420, 283622), (2840, 141811)]