20782530

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{37}}^1\times {\mathrm{79}}^2$

素因数の和:208

約数の個数: 72

約数和(自身を含む): 56206332

約数和(自身を除く): 35423802

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 37, 45, 74, 79, 90, 111, 158, 185, 222, 237, 333, 370, 395, 474, 555, 666, 711, 790, 1110, 1185, 1422, 1665, 2370, 2923, 3330, 3555, 5846, 6241, 7110, 8769, 12482, 14615, 17538, 18723, 26307, 29230, 31205, 37446, 43845, 52614, 56169, 62410, 87690, 93615, 112338, 131535, 187230, 230917, 263070, 280845, 461834, 561690, 692751, 1154585, 1385502, 2078253, 2309170, 3463755, 4156506, 6927510, 10391265, 20782530]

約数ペア:

[(1, 20782530), (2, 10391265), (3, 6927510), (5, 4156506), (6, 3463755), (9, 2309170), (10, 2078253), (15, 1385502), (18, 1154585), (30, 692751), (37, 561690), (45, 461834), (74, 280845), (79, 263070), (90, 230917), (111, 187230), (158, 131535), (185, 112338), (222, 93615), (237, 87690), (333, 62410), (370, 56169), (395, 52614), (474, 43845), (555, 37446), (666, 31205), (711, 29230), (790, 26307), (1110, 18723), (1185, 17538), (1422, 14615), (1665, 12482), (2370, 8769), (2923, 7110), (3330, 6241), (3555, 5846)]