168400725

素因数分解:

$3^1\times 5^2\times {\mathrm{17}}^1\times {\mathrm{269}}^1\times {\mathrm{491}}^1$

素因数の和:790

約数の個数: 48

約数和(自身を含む): 296498880

約数和(自身を除く): 128098155

約数列:

[1, 3, 5, 15, 17, 25, 51, 75, 85, 255, 269, 425, 491, 807, 1275, 1345, 1473, 2455, 4035, 4573, 6725, 7365, 8347, 12275, 13719, 20175, 22865, 25041, 36825, 41735, 68595, 114325, 125205, 132079, 208675, 342975, 396237, 626025, 660395, 1981185, 2245343, 3301975, 6736029, 9905925, 11226715, 33680145, 56133575, 168400725]

約数ペア:

[(1, 168400725), (3, 56133575), (5, 33680145), (15, 11226715), (17, 9905925), (25, 6736029), (51, 3301975), (75, 2245343), (85, 1981185), (255, 660395), (269, 626025), (425, 396237), (491, 342975), (807, 208675), (1275, 132079), (1345, 125205), (1473, 114325), (2455, 68595), (4035, 41735), (4573, 36825), (6725, 25041), (7365, 22865), (8347, 20175), (12275, 13719)]