172174940

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{61}}^1\times {\mathrm{20161}}^1$

素因数の和:20238

約数の個数: 48

約数和(自身を含む): 420014784

約数和(自身を除く): 247839844

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 61, 70, 122, 140, 244, 305, 427, 610, 854, 1220, 1708, 2135, 4270, 8540, 20161, 40322, 80644, 100805, 141127, 201610, 282254, 403220, 564508, 705635, 1229821, 1411270, 2459642, 2822540, 4919284, 6149105, 8608747, 12298210, 17217494, 24596420, 34434988, 43043735, 86087470, 172174940]

約数ペア:

[(1, 172174940), (2, 86087470), (4, 43043735), (5, 34434988), (7, 24596420), (10, 17217494), (14, 12298210), (20, 8608747), (28, 6149105), (35, 4919284), (61, 2822540), (70, 2459642), (122, 1411270), (140, 1229821), (244, 705635), (305, 564508), (427, 403220), (610, 282254), (854, 201610), (1220, 141127), (1708, 100805), (2135, 80644), (4270, 40322), (8540, 20161)]