15345940

素因数分解:

$2^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{101}}^1\times {\mathrm{107}}^1$

素因数の和:288

約数の個数: 48

約数和(自身を含む): 33312384

約数和(自身を除く): 17966444

約数列:

[1, 2, 4, 5, 10, 20, 71, 101, 107, 142, 202, 214, 284, 355, 404, 428, 505, 535, 710, 1010, 1070, 1420, 2020, 2140, 7171, 7597, 10807, 14342, 15194, 21614, 28684, 30388, 35855, 37985, 43228, 54035, 71710, 75970, 108070, 143420, 151940, 216140, 767297, 1534594, 3069188, 3836485, 7672970, 15345940]

約数ペア:

[(1, 15345940), (2, 7672970), (4, 3836485), (5, 3069188), (10, 1534594), (20, 767297), (71, 216140), (101, 151940), (107, 143420), (142, 108070), (202, 75970), (214, 71710), (284, 54035), (355, 43228), (404, 37985), (428, 35855), (505, 30388), (535, 28684), (710, 21614), (1010, 15194), (1070, 14342), (1420, 10807), (2020, 7597), (2140, 7171)]