100909100

素因数分解:

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

素因数の和:315

約数の個数: 72

約数和(自身を含む): 225589728

約数和(自身を除く): 124680628

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 97, 100, 101, 103, 194, 202, 206, 388, 404, 412, 485, 505, 515, 970, 1010, 1030, 1940, 2020, 2060, 2425, 2525, 2575, 4850, 5050, 5150, 9700, 9797, 9991, 10100, 10300, 10403, 19594, 19982, 20806, 39188, 39964, 41612, 48985, 49955, 52015, 97970, 99910, 104030, 195940, 199820, 208060, 244925, 249775, 260075, 489850, 499550, 520150, 979700, 999100, 1009091, 1040300, 2018182, 4036364, 5045455, 10090910, 20181820, 25227275, 50454550, 100909100]

約数ペア:

[(1, 100909100), (2, 50454550), (4, 25227275), (5, 20181820), (10, 10090910), (20, 5045455), (25, 4036364), (50, 2018182), (97, 1040300), (100, 1009091), (101, 999100), (103, 979700), (194, 520150), (202, 499550), (206, 489850), (388, 260075), (404, 249775), (412, 244925), (485, 208060), (505, 199820), (515, 195940), (970, 104030), (1010, 99910), (1030, 97970), (1940, 52015), (2020, 49955), (2060, 48985), (2425, 41612), (2525, 39964), (2575, 39188), (4850, 20806), (5050, 19982), (5150, 19594), (9700, 10403), (9797, 10300), (9991, 10100)]