30642640

素因数分解:

$2^4\times 5^1\times 7^2\times {\mathrm{7817}}^1$

素因数の和:7844

約数の個数: 60

約数和(自身を含む): 82886436

約数和(自身を除く): 52243796

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 49, 56, 70, 80, 98, 112, 140, 196, 245, 280, 392, 490, 560, 784, 980, 1960, 3920, 7817, 15634, 31268, 39085, 54719, 62536, 78170, 109438, 125072, 156340, 218876, 273595, 312680, 383033, 437752, 547190, 625360, 766066, 875504, 1094380, 1532132, 1915165, 2188760, 3064264, 3830330, 4377520, 6128528, 7660660, 15321320, 30642640]

約数ペア:

[(1, 30642640), (2, 15321320), (4, 7660660), (5, 6128528), (7, 4377520), (8, 3830330), (10, 3064264), (14, 2188760), (16, 1915165), (20, 1532132), (28, 1094380), (35, 875504), (40, 766066), (49, 625360), (56, 547190), (70, 437752), (80, 383033), (98, 312680), (112, 273595), (140, 218876), (196, 156340), (245, 125072), (280, 109438), (392, 78170), (490, 62536), (560, 54719), (784, 39085), (980, 31268), (1960, 15634), (3920, 7817)]