398123080

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^2\times {\mathrm{10357}}^1$

素因数の和:10430

約数の個数: 48

約数和(自身を含む): 925694460

約数和(自身を除く): 527571380

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 124, 155, 248, 310, 620, 961, 1240, 1922, 3844, 4805, 7688, 9610, 10357, 19220, 20714, 38440, 41428, 51785, 82856, 103570, 207140, 321067, 414280, 642134, 1284268, 1605335, 2568536, 3210670, 6421340, 9953077, 12842680, 19906154, 39812308, 49765385, 79624616, 99530770, 199061540, 398123080]

約数ペア:

[(1, 398123080), (2, 199061540), (4, 99530770), (5, 79624616), (8, 49765385), (10, 39812308), (20, 19906154), (31, 12842680), (40, 9953077), (62, 6421340), (124, 3210670), (155, 2568536), (248, 1605335), (310, 1284268), (620, 642134), (961, 414280), (1240, 321067), (1922, 207140), (3844, 103570), (4805, 82856), (7688, 51785), (9610, 41428), (10357, 38440), (19220, 20714)]