639368380

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{101}}^1\times {\mathrm{103}}^1\times {\mathrm{439}}^1$

素因数の和:659

約数の個数: 96

約数和(自身を含む): 1568286720

約数和(自身を除く): 928918340

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 101, 103, 140, 202, 206, 404, 412, 439, 505, 515, 707, 721, 878, 1010, 1030, 1414, 1442, 1756, 2020, 2060, 2195, 2828, 2884, 3073, 3535, 3605, 4390, 6146, 7070, 7210, 8780, 10403, 12292, 14140, 14420, 15365, 20806, 30730, 41612, 44339, 45217, 52015, 61460, 72821, 88678, 90434, 104030, 145642, 177356, 180868, 208060, 221695, 226085, 291284, 310373, 316519, 364105, 443390, 452170, 620746, 633038, 728210, 886780, 904340, 1241492, 1266076, 1456420, 1551865, 1582595, 3103730, 3165190, 4566917, 6207460, 6330380, 9133834, 18267668, 22834585, 31968419, 45669170, 63936838, 91338340, 127873676, 159842095, 319684190, 639368380]

約数ペア:

[(1, 639368380), (2, 319684190), (4, 159842095), (5, 127873676), (7, 91338340), (10, 63936838), (14, 45669170), (20, 31968419), (28, 22834585), (35, 18267668), (70, 9133834), (101, 6330380), (103, 6207460), (140, 4566917), (202, 3165190), (206, 3103730), (404, 1582595), (412, 1551865), (439, 1456420), (505, 1266076), (515, 1241492), (707, 904340), (721, 886780), (878, 728210), (1010, 633038), (1030, 620746), (1414, 452170), (1442, 443390), (1756, 364105), (2020, 316519), (2060, 310373), (2195, 291284), (2828, 226085), (2884, 221695), (3073, 208060), (3535, 180868), (3605, 177356), (4390, 145642), (6146, 104030), (7070, 90434), (7210, 88678), (8780, 72821), (10403, 61460), (12292, 52015), (14140, 45217), (14420, 44339), (15365, 41612), (20806, 30730)]