202339240

素因数分解:

$2^3\times 5^1\times {\mathrm{643}}^1\times {\mathrm{7867}}^1$

素因数の和:8521

約数の個数: 32

約数和(自身を含む): 456029280

約数和(自身を除く): 253690040

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 643, 1286, 2572, 3215, 5144, 6430, 7867, 12860, 15734, 25720, 31468, 39335, 62936, 78670, 157340, 314680, 5058481, 10116962, 20233924, 25292405, 40467848, 50584810, 101169620, 202339240]

約数ペア:

[(1, 202339240), (2, 101169620), (4, 50584810), (5, 40467848), (8, 25292405), (10, 20233924), (20, 10116962), (40, 5058481), (643, 314680), (1286, 157340), (2572, 78670), (3215, 62936), (5144, 39335), (6430, 31468), (7867, 25720), (12860, 15734)]