78390760

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{279967}}^1$

素因数の和:279985

約数の個数: 32

約数和(自身を含む): 201576960

約数和(自身を除く): 123186200

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 279967, 559934, 1119868, 1399835, 1959769, 2239736, 2799670, 3919538, 5599340, 7839076, 9798845, 11198680, 15678152, 19597690, 39195380, 78390760]

約数ペア:

[(1, 78390760), (2, 39195380), (4, 19597690), (5, 15678152), (7, 11198680), (8, 9798845), (10, 7839076), (14, 5599340), (20, 3919538), (28, 2799670), (35, 2239736), (40, 1959769), (56, 1399835), (70, 1119868), (140, 559934), (280, 279967)]