138891760

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{248021}}^1$

素因数の和:248041

約数の個数: 40

約数和(自身を含む): 369056736

約数和(自身を除く): 230164976

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 280, 560, 248021, 496042, 992084, 1240105, 1736147, 1984168, 2480210, 3472294, 3968336, 4960420, 6944588, 8680735, 9920840, 13889176, 17361470, 19841680, 27778352, 34722940, 69445880, 138891760]

約数ペア:

[(1, 138891760), (2, 69445880), (4, 34722940), (5, 27778352), (7, 19841680), (8, 17361470), (10, 13889176), (14, 9920840), (16, 8680735), (20, 6944588), (28, 4960420), (35, 3968336), (40, 3472294), (56, 2480210), (70, 1984168), (80, 1736147), (112, 1240105), (140, 992084), (280, 496042), (560, 248021)]