3996400

素因数分解:

$2^4\times 5^2\times {\mathrm{97}}^1\times {\mathrm{103}}^1$

素因数の和:218

約数の個数: 60

約数和(自身を含む): 9794512

約数和(自身を除く): 5798112

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 97, 100, 103, 194, 200, 206, 388, 400, 412, 485, 515, 776, 824, 970, 1030, 1552, 1648, 1940, 2060, 2425, 2575, 3880, 4120, 4850, 5150, 7760, 8240, 9700, 9991, 10300, 19400, 19982, 20600, 38800, 39964, 41200, 49955, 79928, 99910, 159856, 199820, 249775, 399640, 499550, 799280, 999100, 1998200, 3996400]

約数ペア:

[(1, 3996400), (2, 1998200), (4, 999100), (5, 799280), (8, 499550), (10, 399640), (16, 249775), (20, 199820), (25, 159856), (40, 99910), (50, 79928), (80, 49955), (97, 41200), (100, 39964), (103, 38800), (194, 20600), (200, 19982), (206, 19400), (388, 10300), (400, 9991), (412, 9700), (485, 8240), (515, 7760), (776, 5150), (824, 4850), (970, 4120), (1030, 3880), (1552, 2575), (1648, 2425), (1940, 2060)]