51078020

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{397}}^1\times {\mathrm{919}}^1$

素因数の和:1332

約数の個数: 48

約数和(自身を含む): 123029760

約数和(自身を除く): 71951740

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 397, 794, 919, 1588, 1838, 1985, 2779, 3676, 3970, 4595, 5558, 6433, 7940, 9190, 11116, 12866, 13895, 18380, 25732, 27790, 32165, 55580, 64330, 128660, 364843, 729686, 1459372, 1824215, 2553901, 3648430, 5107802, 7296860, 10215604, 12769505, 25539010, 51078020]

約数ペア:

[(1, 51078020), (2, 25539010), (4, 12769505), (5, 10215604), (7, 7296860), (10, 5107802), (14, 3648430), (20, 2553901), (28, 1824215), (35, 1459372), (70, 729686), (140, 364843), (397, 128660), (794, 64330), (919, 55580), (1588, 32165), (1838, 27790), (1985, 25732), (2779, 18380), (3676, 13895), (3970, 12866), (4595, 11116), (5558, 9190), (6433, 7940)]