20625850

素因数分解:

$2^1\times 5^2\times 7^1\times {\mathrm{31}}^1\times {\mathrm{1901}}^1$

素因数の和:1951

約数の個数: 48

約数和(自身を含む): 45282816

約数和(自身を除く): 24656966

約数列:

[1, 2, 5, 7, 10, 14, 25, 31, 35, 50, 62, 70, 155, 175, 217, 310, 350, 434, 775, 1085, 1550, 1901, 2170, 3802, 5425, 9505, 10850, 13307, 19010, 26614, 47525, 58931, 66535, 95050, 117862, 133070, 294655, 332675, 412517, 589310, 665350, 825034, 1473275, 2062585, 2946550, 4125170, 10312925, 20625850]

約数ペア:

[(1, 20625850), (2, 10312925), (5, 4125170), (7, 2946550), (10, 2062585), (14, 1473275), (25, 825034), (31, 665350), (35, 589310), (50, 412517), (62, 332675), (70, 294655), (155, 133070), (175, 117862), (217, 95050), (310, 66535), (350, 58931), (434, 47525), (775, 26614), (1085, 19010), (1550, 13307), (1901, 10850), (2170, 9505), (3802, 5425)]