78124540

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{487}}^1\times {\mathrm{617}}^1$

素因数の和:1126

約数の個数: 48

約数和(自身を含む): 177331392

約数和(自身を除く): 99206852

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 487, 617, 974, 1234, 1948, 2435, 2468, 3085, 4870, 6170, 6331, 8021, 9740, 12340, 12662, 16042, 25324, 31655, 32084, 40105, 63310, 80210, 126620, 160420, 300479, 600958, 1201916, 1502395, 3004790, 3906227, 6009580, 7812454, 15624908, 19531135, 39062270, 78124540]

約数ペア:

[(1, 78124540), (2, 39062270), (4, 19531135), (5, 15624908), (10, 7812454), (13, 6009580), (20, 3906227), (26, 3004790), (52, 1502395), (65, 1201916), (130, 600958), (260, 300479), (487, 160420), (617, 126620), (974, 80210), (1234, 63310), (1948, 40105), (2435, 32084), (2468, 31655), (3085, 25324), (4870, 16042), (6170, 12662), (6331, 12340), (8021, 9740)]