917503900

素因数分解:

$2^2\times 5^2\times {\mathrm{31}}^1\times {\mathrm{43}}^1\times {\mathrm{6883}}^1$

素因数の和:6971

約数の個数: 72

約数和(自身を含む): 2103309824

約数和(自身を除く): 1185805924

約数列:

[1, 2, 4, 5, 10, 20, 25, 31, 43, 50, 62, 86, 100, 124, 155, 172, 215, 310, 430, 620, 775, 860, 1075, 1333, 1550, 2150, 2666, 3100, 4300, 5332, 6665, 6883, 13330, 13766, 26660, 27532, 33325, 34415, 66650, 68830, 133300, 137660, 172075, 213373, 295969, 344150, 426746, 591938, 688300, 853492, 1066865, 1183876, 1479845, 2133730, 2959690, 4267460, 5334325, 5919380, 7399225, 9175039, 10668650, 14798450, 18350078, 21337300, 29596900, 36700156, 45875195, 91750390, 183500780, 229375975, 458751950, 917503900]

約数ペア:

[(1, 917503900), (2, 458751950), (4, 229375975), (5, 183500780), (10, 91750390), (20, 45875195), (25, 36700156), (31, 29596900), (43, 21337300), (50, 18350078), (62, 14798450), (86, 10668650), (100, 9175039), (124, 7399225), (155, 5919380), (172, 5334325), (215, 4267460), (310, 2959690), (430, 2133730), (620, 1479845), (775, 1183876), (860, 1066865), (1075, 853492), (1333, 688300), (1550, 591938), (2150, 426746), (2666, 344150), (3100, 295969), (4300, 213373), (5332, 172075), (6665, 137660), (6883, 133300), (13330, 68830), (13766, 66650), (26660, 34415), (27532, 33325)]