18831720

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{139}}^1\times {\mathrm{1129}}^1$

素因数の和:1282

約数の個数: 64

約数和(自身を含む): 56952000

約数和(自身を除く): 38120280

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120, 139, 278, 417, 556, 695, 834, 1112, 1129, 1390, 1668, 2085, 2258, 2780, 3336, 3387, 4170, 4516, 5560, 5645, 6774, 8340, 9032, 11290, 13548, 16680, 16935, 22580, 27096, 33870, 45160, 67740, 135480, 156931, 313862, 470793, 627724, 784655, 941586, 1255448, 1569310, 1883172, 2353965, 3138620, 3766344, 4707930, 6277240, 9415860, 18831720]

約数ペア:

[(1, 18831720), (2, 9415860), (3, 6277240), (4, 4707930), (5, 3766344), (6, 3138620), (8, 2353965), (10, 1883172), (12, 1569310), (15, 1255448), (20, 941586), (24, 784655), (30, 627724), (40, 470793), (60, 313862), (120, 156931), (139, 135480), (278, 67740), (417, 45160), (556, 33870), (695, 27096), (834, 22580), (1112, 16935), (1129, 16680), (1390, 13548), (1668, 11290), (2085, 9032), (2258, 8340), (2780, 6774), (3336, 5645), (3387, 5560), (4170, 4516)]