408032440

素因数分解:

$2^3\times 5^1\times {\mathrm{97}}^1\times {\mathrm{103}}^1\times {\mathrm{1021}}^1$

素因数の和:1232

約数の個数: 64

約数和(自身を含む): 937460160

約数和(自身を除く): 529427720

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 97, 103, 194, 206, 388, 412, 485, 515, 776, 824, 970, 1021, 1030, 1940, 2042, 2060, 3880, 4084, 4120, 5105, 8168, 9991, 10210, 19982, 20420, 39964, 40840, 49955, 79928, 99037, 99910, 105163, 198074, 199820, 210326, 396148, 399640, 420652, 495185, 525815, 792296, 841304, 990370, 1051630, 1980740, 2103260, 3961480, 4206520, 10200811, 20401622, 40803244, 51004055, 81606488, 102008110, 204016220, 408032440]

約数ペア:

[(1, 408032440), (2, 204016220), (4, 102008110), (5, 81606488), (8, 51004055), (10, 40803244), (20, 20401622), (40, 10200811), (97, 4206520), (103, 3961480), (194, 2103260), (206, 1980740), (388, 1051630), (412, 990370), (485, 841304), (515, 792296), (776, 525815), (824, 495185), (970, 420652), (1021, 399640), (1030, 396148), (1940, 210326), (2042, 199820), (2060, 198074), (3880, 105163), (4084, 99910), (4120, 99037), (5105, 79928), (8168, 49955), (9991, 40840), (10210, 39964), (19982, 20420)]