51155980

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{103}}^1\times {\mathrm{1307}}^1$

素因数の和:1438

約数の個数: 48

約数和(自身を含む): 114266880

約数和(自身を除く): 63110900

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 103, 190, 206, 380, 412, 515, 1030, 1307, 1957, 2060, 2614, 3914, 5228, 6535, 7828, 9785, 13070, 19570, 24833, 26140, 39140, 49666, 99332, 124165, 134621, 248330, 269242, 496660, 538484, 673105, 1346210, 2557799, 2692420, 5115598, 10231196, 12788995, 25577990, 51155980]

約数ペア:

[(1, 51155980), (2, 25577990), (4, 12788995), (5, 10231196), (10, 5115598), (19, 2692420), (20, 2557799), (38, 1346210), (76, 673105), (95, 538484), (103, 496660), (190, 269242), (206, 248330), (380, 134621), (412, 124165), (515, 99332), (1030, 49666), (1307, 39140), (1957, 26140), (2060, 24833), (2614, 19570), (3914, 13070), (5228, 9785), (6535, 7828)]