79131220

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{18233}}^1$

素因数の和:18280

約数の個数: 48

約数和(自身を含む): 196051968

約数和(自身を除く): 116920748

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 31, 35, 62, 70, 124, 140, 155, 217, 310, 434, 620, 868, 1085, 2170, 4340, 18233, 36466, 72932, 91165, 127631, 182330, 255262, 364660, 510524, 565223, 638155, 1130446, 1276310, 2260892, 2552620, 2826115, 3956561, 5652230, 7913122, 11304460, 15826244, 19782805, 39565610, 79131220]

約数ペア:

[(1, 79131220), (2, 39565610), (4, 19782805), (5, 15826244), (7, 11304460), (10, 7913122), (14, 5652230), (20, 3956561), (28, 2826115), (31, 2552620), (35, 2260892), (62, 1276310), (70, 1130446), (124, 638155), (140, 565223), (155, 510524), (217, 364660), (310, 255262), (434, 182330), (620, 127631), (868, 91165), (1085, 72932), (2170, 36466), (4340, 18233)]