28039160

素因数分解:

$2^3\times 5^1\times {\mathrm{59}}^1\times {\mathrm{109}}^2$

素因数の和:288

約数の個数: 48

約数和(自身を含む): 64751400

約数和(自身を除く): 36712240

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 59, 109, 118, 218, 236, 295, 436, 472, 545, 590, 872, 1090, 1180, 2180, 2360, 4360, 6431, 11881, 12862, 23762, 25724, 32155, 47524, 51448, 59405, 64310, 95048, 118810, 128620, 237620, 257240, 475240, 700979, 1401958, 2803916, 3504895, 5607832, 7009790, 14019580, 28039160]

約数ペア:

[(1, 28039160), (2, 14019580), (4, 7009790), (5, 5607832), (8, 3504895), (10, 2803916), (20, 1401958), (40, 700979), (59, 475240), (109, 257240), (118, 237620), (218, 128620), (236, 118810), (295, 95048), (436, 64310), (472, 59405), (545, 51448), (590, 47524), (872, 32155), (1090, 25724), (1180, 23762), (2180, 12862), (2360, 11881), (4360, 6431)]