697406980

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{389}}^1\times {\mathrm{5273}}^1$

素因数の和:5688

約数の個数: 48

約数和(自身を含む): 1554986160

約数和(自身を除く): 857579180

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 170, 340, 389, 778, 1556, 1945, 3890, 5273, 6613, 7780, 10546, 13226, 21092, 26365, 26452, 33065, 52730, 66130, 89641, 105460, 132260, 179282, 358564, 448205, 896410, 1792820, 2051197, 4102394, 8204788, 10255985, 20511970, 34870349, 41023940, 69740698, 139481396, 174351745, 348703490, 697406980]

約数ペア:

[(1, 697406980), (2, 348703490), (4, 174351745), (5, 139481396), (10, 69740698), (17, 41023940), (20, 34870349), (34, 20511970), (68, 10255985), (85, 8204788), (170, 4102394), (340, 2051197), (389, 1792820), (778, 896410), (1556, 448205), (1945, 358564), (3890, 179282), (5273, 132260), (6613, 105460), (7780, 89641), (10546, 66130), (13226, 52730), (21092, 33065), (26365, 26452)]