201818200

素因数分解:

$2^3\times 5^2\times {\mathrm{97}}^1\times {\mathrm{101}}^1\times {\mathrm{103}}^1$

素因数の和:317

約数の個数: 96

約数和(自身を含む): 483406560

約数和(自身を除く): 281588360

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 97, 100, 101, 103, 194, 200, 202, 206, 388, 404, 412, 485, 505, 515, 776, 808, 824, 970, 1010, 1030, 1940, 2020, 2060, 2425, 2525, 2575, 3880, 4040, 4120, 4850, 5050, 5150, 9700, 9797, 9991, 10100, 10300, 10403, 19400, 19594, 19982, 20200, 20600, 20806, 39188, 39964, 41612, 48985, 49955, 52015, 78376, 79928, 83224, 97970, 99910, 104030, 195940, 199820, 208060, 244925, 249775, 260075, 391880, 399640, 416120, 489850, 499550, 520150, 979700, 999100, 1009091, 1040300, 1959400, 1998200, 2018182, 2080600, 4036364, 5045455, 8072728, 10090910, 20181820, 25227275, 40363640, 50454550, 100909100, 201818200]

約数ペア:

[(1, 201818200), (2, 100909100), (4, 50454550), (5, 40363640), (8, 25227275), (10, 20181820), (20, 10090910), (25, 8072728), (40, 5045455), (50, 4036364), (97, 2080600), (100, 2018182), (101, 1998200), (103, 1959400), (194, 1040300), (200, 1009091), (202, 999100), (206, 979700), (388, 520150), (404, 499550), (412, 489850), (485, 416120), (505, 399640), (515, 391880), (776, 260075), (808, 249775), (824, 244925), (970, 208060), (1010, 199820), (1030, 195940), (1940, 104030), (2020, 99910), (2060, 97970), (2425, 83224), (2525, 79928), (2575, 78376), (3880, 52015), (4040, 49955), (4120, 48985), (4850, 41612), (5050, 39964), (5150, 39188), (9700, 20806), (9797, 20600), (9991, 20200), (10100, 19982), (10300, 19594), (10403, 19400)]