78208760

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{279317}}^1$

素因数の和:279335

約数の個数: 32

約数和(自身を含む): 201108960

約数和(自身を除く): 122900200

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 279317, 558634, 1117268, 1396585, 1955219, 2234536, 2793170, 3910438, 5586340, 7820876, 9776095, 11172680, 15641752, 19552190, 39104380, 78208760]

約数ペア:

[(1, 78208760), (2, 39104380), (4, 19552190), (5, 15641752), (7, 11172680), (8, 9776095), (10, 7820876), (14, 5586340), (20, 3910438), (28, 2793170), (35, 2234536), (40, 1955219), (56, 1396585), (70, 1117268), (140, 558634), (280, 279317)]