628849900

素因数分解:

$2^2\times 5^2\times 7^1\times {\mathrm{23}}^1\times {\mathrm{139}}^1\times {\mathrm{281}}^1$

素因数の和:464

約数の個数: 144

約数和(自身を含む): 1644894720

約数和(自身を除く): 1016044820

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 23, 25, 28, 35, 46, 50, 70, 92, 100, 115, 139, 140, 161, 175, 230, 278, 281, 322, 350, 460, 556, 562, 575, 644, 695, 700, 805, 973, 1124, 1150, 1390, 1405, 1610, 1946, 1967, 2300, 2780, 2810, 3197, 3220, 3475, 3892, 3934, 4025, 4865, 5620, 6394, 6463, 6950, 7025, 7868, 8050, 9730, 9835, 12788, 12926, 13900, 14050, 15985, 16100, 19460, 19670, 22379, 24325, 25852, 28100, 31970, 32315, 39059, 39340, 44758, 45241, 48650, 49175, 63940, 64630, 78118, 79925, 89516, 90482, 97300, 98350, 111895, 129260, 156236, 159850, 161575, 180964, 195295, 196700, 223790, 226205, 273413, 319700, 323150, 390590, 447580, 452410, 546826, 559475, 646300, 781180, 898357, 904820, 976475, 1093652, 1118950, 1131025, 1367065, 1796714, 1952950, 2237900, 2262050, 2734130, 3593428, 3905900, 4491785, 4524100, 5468260, 6288499, 6835325, 8983570, 12576998, 13670650, 17967140, 22458925, 25153996, 27341300, 31442495, 44917850, 62884990, 89835700, 125769980, 157212475, 314424950, 628849900]

約数ペア:

[(1, 628849900), (2, 314424950), (4, 157212475), (5, 125769980), (7, 89835700), (10, 62884990), (14, 44917850), (20, 31442495), (23, 27341300), (25, 25153996), (28, 22458925), (35, 17967140), (46, 13670650), (50, 12576998), (70, 8983570), (92, 6835325), (100, 6288499), (115, 5468260), (139, 4524100), (140, 4491785), (161, 3905900), (175, 3593428), (230, 2734130), (278, 2262050), (281, 2237900), (322, 1952950), (350, 1796714), (460, 1367065), (556, 1131025), (562, 1118950), (575, 1093652), (644, 976475), (695, 904820), (700, 898357), (805, 781180), (973, 646300), (1124, 559475), (1150, 546826), (1390, 452410), (1405, 447580), (1610, 390590), (1946, 323150), (1967, 319700), (2300, 273413), (2780, 226205), (2810, 223790), (3197, 196700), (3220, 195295), (3475, 180964), (3892, 161575), (3934, 159850), (4025, 156236), (4865, 129260), (5620, 111895), (6394, 98350), (6463, 97300), (6950, 90482), (7025, 89516), (7868, 79925), (8050, 78118), (9730, 64630), (9835, 63940), (12788, 49175), (12926, 48650), (13900, 45241), (14050, 44758), (15985, 39340), (16100, 39059), (19460, 32315), (19670, 31970), (22379, 28100), (24325, 25852)]