213778980

素因数分解:

$2^2\times 3^3\times 5^1\times {\mathrm{395887}}^1$

素因数の和:395905

約数の個数: 48

約数和(自身を含む): 665091840

約数和(自身を除く): 451312860

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 27, 30, 36, 45, 54, 60, 90, 108, 135, 180, 270, 540, 395887, 791774, 1187661, 1583548, 1979435, 2375322, 3562983, 3958870, 4750644, 5938305, 7125966, 7917740, 10688949, 11876610, 14251932, 17814915, 21377898, 23753220, 35629830, 42755796, 53444745, 71259660, 106889490, 213778980]

約数ペア:

[(1, 213778980), (2, 106889490), (3, 71259660), (4, 53444745), (5, 42755796), (6, 35629830), (9, 23753220), (10, 21377898), (12, 17814915), (15, 14251932), (18, 11876610), (20, 10688949), (27, 7917740), (30, 7125966), (36, 5938305), (45, 4750644), (54, 3958870), (60, 3562983), (90, 2375322), (108, 1979435), (135, 1583548), (180, 1187661), (270, 791774), (540, 395887)]