65704360

素因数分解:

$2^3\times 5^1\times {\mathrm{131}}^1\times {\mathrm{12539}}^1$

素因数の和:12681

約数の個数: 32

約数和(自身を含む): 148975200

約数和(自身を除く): 83270840

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 131, 262, 524, 655, 1048, 1310, 2620, 5240, 12539, 25078, 50156, 62695, 100312, 125390, 250780, 501560, 1642609, 3285218, 6570436, 8213045, 13140872, 16426090, 32852180, 65704360]

約数ペア:

[(1, 65704360), (2, 32852180), (4, 16426090), (5, 13140872), (8, 8213045), (10, 6570436), (20, 3285218), (40, 1642609), (131, 501560), (262, 250780), (524, 125390), (655, 100312), (1048, 62695), (1310, 50156), (2620, 25078), (5240, 12539)]