25280395

素因数分解:

$5^1\times 7^1\times {\mathrm{41}}^1\times {\mathrm{79}}^1\times {\mathrm{223}}^1$

素因数の和:355

約数の個数: 32

約数和(自身を含む): 36126720

約数和(自身を除く): 10846325

約数列:

[1, 5, 7, 35, 41, 79, 205, 223, 287, 395, 553, 1115, 1435, 1561, 2765, 3239, 7805, 9143, 16195, 17617, 22673, 45715, 64001, 88085, 113365, 123319, 320005, 616595, 722297, 3611485, 5056079, 25280395]

約数ペア:

[(1, 25280395), (5, 5056079), (7, 3611485), (35, 722297), (41, 616595), (79, 320005), (205, 123319), (223, 113365), (287, 88085), (395, 64001), (553, 45715), (1115, 22673), (1435, 17617), (1561, 16195), (2765, 9143), (3239, 7805)]