128616920

素因数分解:

$2^3\times 5^1\times {\mathrm{23}}^1\times {\mathrm{139801}}^1$

素因数の和:139835

約数の個数: 32

約数和(自身を含む): 301972320

約数和(自身を除く): 173355400

約数列:

[1, 2, 4, 5, 8, 10, 20, 23, 40, 46, 92, 115, 184, 230, 460, 920, 139801, 279602, 559204, 699005, 1118408, 1398010, 2796020, 3215423, 5592040, 6430846, 12861692, 16077115, 25723384, 32154230, 64308460, 128616920]

約数ペア:

[(1, 128616920), (2, 64308460), (4, 32154230), (5, 25723384), (8, 16077115), (10, 12861692), (20, 6430846), (23, 5592040), (40, 3215423), (46, 2796020), (92, 1398010), (115, 1118408), (184, 699005), (230, 559204), (460, 279602), (920, 139801)]