31307675

素因数分解:

$5^2\times 7^1\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{199}}^1$

素因数の和:276

約数の個数: 48

約数和(自身を含む): 47616000

約数和(自身を除く): 16308325

約数列:

[1, 5, 7, 25, 29, 31, 35, 145, 155, 175, 199, 203, 217, 725, 775, 899, 995, 1015, 1085, 1393, 4495, 4975, 5075, 5425, 5771, 6169, 6293, 6965, 22475, 28855, 30845, 31465, 34825, 40397, 43183, 144275, 154225, 157325, 178901, 201985, 215915, 894505, 1009925, 1079575, 1252307, 4472525, 6261535, 31307675]

約数ペア:

[(1, 31307675), (5, 6261535), (7, 4472525), (25, 1252307), (29, 1079575), (31, 1009925), (35, 894505), (145, 215915), (155, 201985), (175, 178901), (199, 157325), (203, 154225), (217, 144275), (725, 43183), (775, 40397), (899, 34825), (995, 31465), (1015, 30845), (1085, 28855), (1393, 22475), (4495, 6965), (4975, 6293), (5075, 6169), (5425, 5771)]