890990170

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{103}}^1\times {\mathrm{191}}^1\times {\mathrm{647}}^1$

素因数の和:955

約数の個数: 64

約数和(自身を含む): 1863254016

約数和(自身を除く): 972263846

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 103, 191, 206, 382, 515, 647, 721, 955, 1030, 1294, 1337, 1442, 1910, 2674, 3235, 3605, 4529, 6470, 6685, 7210, 9058, 13370, 19673, 22645, 39346, 45290, 66641, 98365, 123577, 133282, 137711, 196730, 247154, 275422, 333205, 466487, 617885, 666410, 688555, 865039, 932974, 1235770, 1377110, 1730078, 2332435, 4325195, 4664870, 8650390, 12728431, 25456862, 63642155, 89099017, 127284310, 178198034, 445495085, 890990170]

約数ペア:

[(1, 890990170), (2, 445495085), (5, 178198034), (7, 127284310), (10, 89099017), (14, 63642155), (35, 25456862), (70, 12728431), (103, 8650390), (191, 4664870), (206, 4325195), (382, 2332435), (515, 1730078), (647, 1377110), (721, 1235770), (955, 932974), (1030, 865039), (1294, 688555), (1337, 666410), (1442, 617885), (1910, 466487), (2674, 333205), (3235, 275422), (3605, 247154), (4529, 196730), (6470, 137711), (6685, 133282), (7210, 123577), (9058, 98365), (13370, 66641), (19673, 45290), (22645, 39346)]