79852720

素因数分解:

$2^4\times 5^1\times {\mathrm{43}}^1\times {\mathrm{139}}^1\times {\mathrm{167}}^1$

素因数の和:362

約数の個数: 80

約数和(自身を含む): 192487680

約数和(自身を除く): 112634960

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 43, 80, 86, 139, 167, 172, 215, 278, 334, 344, 430, 556, 668, 688, 695, 835, 860, 1112, 1336, 1390, 1670, 1720, 2224, 2672, 2780, 3340, 3440, 5560, 5977, 6680, 7181, 11120, 11954, 13360, 14362, 23213, 23908, 28724, 29885, 35905, 46426, 47816, 57448, 59770, 71810, 92852, 95632, 114896, 116065, 119540, 143620, 185704, 232130, 239080, 287240, 371408, 464260, 478160, 574480, 928520, 998159, 1857040, 1996318, 3992636, 4990795, 7985272, 9981590, 15970544, 19963180, 39926360, 79852720]

約数ペア:

[(1, 79852720), (2, 39926360), (4, 19963180), (5, 15970544), (8, 9981590), (10, 7985272), (16, 4990795), (20, 3992636), (40, 1996318), (43, 1857040), (80, 998159), (86, 928520), (139, 574480), (167, 478160), (172, 464260), (215, 371408), (278, 287240), (334, 239080), (344, 232130), (430, 185704), (556, 143620), (668, 119540), (688, 116065), (695, 114896), (835, 95632), (860, 92852), (1112, 71810), (1336, 59770), (1390, 57448), (1670, 47816), (1720, 46426), (2224, 35905), (2672, 29885), (2780, 28724), (3340, 23908), (3440, 23213), (5560, 14362), (5977, 13360), (6680, 11954), (7181, 11120)]