290502020

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{467}}^1\times {\mathrm{1637}}^1$

素因数の和:2132

約数の個数: 48

約数和(自身を含む): 643930560

約数和(自身を除く): 353428540

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 380, 467, 934, 1637, 1868, 2335, 3274, 4670, 6548, 8185, 8873, 9340, 16370, 17746, 31103, 32740, 35492, 44365, 62206, 88730, 124412, 155515, 177460, 311030, 622060, 764479, 1528958, 3057916, 3822395, 7644790, 14525101, 15289580, 29050202, 58100404, 72625505, 145251010, 290502020]

約数ペア:

[(1, 290502020), (2, 145251010), (4, 72625505), (5, 58100404), (10, 29050202), (19, 15289580), (20, 14525101), (38, 7644790), (76, 3822395), (95, 3057916), (190, 1528958), (380, 764479), (467, 622060), (934, 311030), (1637, 177460), (1868, 155515), (2335, 124412), (3274, 88730), (4670, 62206), (6548, 44365), (8185, 35492), (8873, 32740), (9340, 31103), (16370, 17746)]