77838620

素因数分解:

$2^2\times 5^1\times {\mathrm{97}}^1\times {\mathrm{40123}}^1$

素因数の和:40229

約数の個数: 24

約数和(自身を含む): 165150384

約数和(自身を除く): 87311764

約数列:

[1, 2, 4, 5, 10, 20, 97, 194, 388, 485, 970, 1940, 40123, 80246, 160492, 200615, 401230, 802460, 3891931, 7783862, 15567724, 19459655, 38919310, 77838620]

約数ペア:

[(1, 77838620), (2, 38919310), (4, 19459655), (5, 15567724), (10, 7783862), (20, 3891931), (97, 802460), (194, 401230), (388, 200615), (485, 160492), (970, 80246), (1940, 40123)]