28547420

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^2\times {\mathrm{449}}^1$

素因数の和:503

約数の個数: 72

約数和(自身を含む): 69627600

約数和(自身を除く): 41080180

約数列:

[1, 2, 4, 5, 10, 11, 17, 20, 22, 34, 44, 55, 68, 85, 110, 170, 187, 220, 289, 340, 374, 449, 578, 748, 898, 935, 1156, 1445, 1796, 1870, 2245, 2890, 3179, 3740, 4490, 4939, 5780, 6358, 7633, 8980, 9878, 12716, 15266, 15895, 19756, 24695, 30532, 31790, 38165, 49390, 63580, 76330, 83963, 98780, 129761, 152660, 167926, 259522, 335852, 419815, 519044, 648805, 839630, 1297610, 1427371, 1679260, 2595220, 2854742, 5709484, 7136855, 14273710, 28547420]

約数ペア:

[(1, 28547420), (2, 14273710), (4, 7136855), (5, 5709484), (10, 2854742), (11, 2595220), (17, 1679260), (20, 1427371), (22, 1297610), (34, 839630), (44, 648805), (55, 519044), (68, 419815), (85, 335852), (110, 259522), (170, 167926), (187, 152660), (220, 129761), (289, 98780), (340, 83963), (374, 76330), (449, 63580), (578, 49390), (748, 38165), (898, 31790), (935, 30532), (1156, 24695), (1445, 19756), (1796, 15895), (1870, 15266), (2245, 12716), (2890, 9878), (3179, 8980), (3740, 7633), (4490, 6358), (4939, 5780)]