31212350

素因数分解:

$2^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{1549}}^1$

素因数の和:1605

約数の個数: 48

約数和(自身を含む): 64579200

約数和(自身を除く): 33366850

約数列:

[1, 2, 5, 10, 13, 25, 26, 31, 50, 62, 65, 130, 155, 310, 325, 403, 650, 775, 806, 1549, 1550, 2015, 3098, 4030, 7745, 10075, 15490, 20137, 20150, 38725, 40274, 48019, 77450, 96038, 100685, 201370, 240095, 480190, 503425, 624247, 1006850, 1200475, 1248494, 2400950, 3121235, 6242470, 15606175, 31212350]

約数ペア:

[(1, 31212350), (2, 15606175), (5, 6242470), (10, 3121235), (13, 2400950), (25, 1248494), (26, 1200475), (31, 1006850), (50, 624247), (62, 503425), (65, 480190), (130, 240095), (155, 201370), (310, 100685), (325, 96038), (403, 77450), (650, 48019), (775, 40274), (806, 38725), (1549, 20150), (1550, 20137), (2015, 15490), (3098, 10075), (4030, 7745)]