390737950

素因数分解:

$2^1\times 5^2\times {\mathrm{31}}^1\times {\mathrm{79}}^1\times {\mathrm{3191}}^1$

素因数の和:3313

約数の個数: 48

約数和(自身を含む): 759951360

約数和(自身を除く): 369213410

約数列:

[1, 2, 5, 10, 25, 31, 50, 62, 79, 155, 158, 310, 395, 775, 790, 1550, 1975, 2449, 3191, 3950, 4898, 6382, 12245, 15955, 24490, 31910, 61225, 79775, 98921, 122450, 159550, 197842, 252089, 494605, 504178, 989210, 1260445, 2473025, 2520890, 4946050, 6302225, 7814759, 12604450, 15629518, 39073795, 78147590, 195368975, 390737950]

約数ペア:

[(1, 390737950), (2, 195368975), (5, 78147590), (10, 39073795), (25, 15629518), (31, 12604450), (50, 7814759), (62, 6302225), (79, 4946050), (155, 2520890), (158, 2473025), (310, 1260445), (395, 989210), (775, 504178), (790, 494605), (1550, 252089), (1975, 197842), (2449, 159550), (3191, 122450), (3950, 98921), (4898, 79775), (6382, 61225), (12245, 31910), (15955, 24490)]