203415880

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{389}}^1\times {\mathrm{769}}^1$

素因数の和:1186

約数の個数: 64

約数和(自身を含む): 486486000

約数和(自身を除く): 283070120

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 68, 85, 136, 170, 340, 389, 680, 769, 778, 1538, 1556, 1945, 3076, 3112, 3845, 3890, 6152, 6613, 7690, 7780, 13073, 13226, 15380, 15560, 26146, 26452, 30760, 33065, 52292, 52904, 65365, 66130, 104584, 130730, 132260, 261460, 264520, 299141, 522920, 598282, 1196564, 1495705, 2393128, 2991410, 5085397, 5982820, 10170794, 11965640, 20341588, 25426985, 40683176, 50853970, 101707940, 203415880]

約数ペア:

[(1, 203415880), (2, 101707940), (4, 50853970), (5, 40683176), (8, 25426985), (10, 20341588), (17, 11965640), (20, 10170794), (34, 5982820), (40, 5085397), (68, 2991410), (85, 2393128), (136, 1495705), (170, 1196564), (340, 598282), (389, 522920), (680, 299141), (769, 264520), (778, 261460), (1538, 132260), (1556, 130730), (1945, 104584), (3076, 66130), (3112, 65365), (3845, 52904), (3890, 52292), (6152, 33065), (6613, 30760), (7690, 26452), (7780, 26146), (13073, 15560), (13226, 15380)]