18792290

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{43}}^1\times {\mathrm{137}}^1$

素因数の和:227

約数の個数: 64

約数和(自身を含む): 39346560

約数和(自身を除く): 20554270

約数列:

[1, 2, 5, 10, 11, 22, 29, 43, 55, 58, 86, 110, 137, 145, 215, 274, 290, 319, 430, 473, 638, 685, 946, 1247, 1370, 1507, 1595, 2365, 2494, 3014, 3190, 3973, 4730, 5891, 6235, 7535, 7946, 11782, 12470, 13717, 15070, 19865, 27434, 29455, 39730, 43703, 58910, 64801, 68585, 87406, 129602, 137170, 170839, 218515, 324005, 341678, 437030, 648010, 854195, 1708390, 1879229, 3758458, 9396145, 18792290]

約数ペア:

[(1, 18792290), (2, 9396145), (5, 3758458), (10, 1879229), (11, 1708390), (22, 854195), (29, 648010), (43, 437030), (55, 341678), (58, 324005), (86, 218515), (110, 170839), (137, 137170), (145, 129602), (215, 87406), (274, 68585), (290, 64801), (319, 58910), (430, 43703), (473, 39730), (638, 29455), (685, 27434), (946, 19865), (1247, 15070), (1370, 13717), (1507, 12470), (1595, 11782), (2365, 7946), (2494, 7535), (3014, 6235), (3190, 5891), (3973, 4730)]