279300080

素因数分解:

$2^4\times 5^1\times {\mathrm{31}}^1\times {\mathrm{112621}}^1$

素因数の和:112665

約数の個数: 40

約数和(自身を含む): 670326144

約数和(自身を除く): 391026064

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 40, 62, 80, 124, 155, 248, 310, 496, 620, 1240, 2480, 112621, 225242, 450484, 563105, 900968, 1126210, 1801936, 2252420, 3491251, 4504840, 6982502, 9009680, 13965004, 17456255, 27930008, 34912510, 55860016, 69825020, 139650040, 279300080]

約数ペア:

[(1, 279300080), (2, 139650040), (4, 69825020), (5, 55860016), (8, 34912510), (10, 27930008), (16, 17456255), (20, 13965004), (31, 9009680), (40, 6982502), (62, 4504840), (80, 3491251), (124, 2252420), (155, 1801936), (248, 1126210), (310, 900968), (496, 563105), (620, 450484), (1240, 225242), (2480, 112621)]