28106520

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{419}}^1$

素因数の和:489

約数の個数: 128

約数和(自身を含む): 93139200

約数和(自身を除く): 65032680

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 20, 24, 26, 30, 39, 40, 43, 52, 60, 65, 78, 86, 104, 120, 129, 130, 156, 172, 195, 215, 258, 260, 312, 344, 390, 419, 430, 516, 520, 559, 645, 780, 838, 860, 1032, 1118, 1257, 1290, 1560, 1676, 1677, 1720, 2095, 2236, 2514, 2580, 2795, 3352, 3354, 4190, 4472, 5028, 5160, 5447, 5590, 6285, 6708, 8380, 8385, 10056, 10894, 11180, 12570, 13416, 16341, 16760, 16770, 18017, 21788, 22360, 25140, 27235, 32682, 33540, 36034, 43576, 50280, 54051, 54470, 65364, 67080, 72068, 81705, 90085, 108102, 108940, 130728, 144136, 163410, 180170, 216204, 217880, 234221, 270255, 326820, 360340, 432408, 468442, 540510, 653640, 702663, 720680, 936884, 1081020, 1171105, 1405326, 1873768, 2162040, 2342210, 2810652, 3513315, 4684420, 5621304, 7026630, 9368840, 14053260, 28106520]

約数ペア:

[(1, 28106520), (2, 14053260), (3, 9368840), (4, 7026630), (5, 5621304), (6, 4684420), (8, 3513315), (10, 2810652), (12, 2342210), (13, 2162040), (15, 1873768), (20, 1405326), (24, 1171105), (26, 1081020), (30, 936884), (39, 720680), (40, 702663), (43, 653640), (52, 540510), (60, 468442), (65, 432408), (78, 360340), (86, 326820), (104, 270255), (120, 234221), (129, 217880), (130, 216204), (156, 180170), (172, 163410), (195, 144136), (215, 130728), (258, 108940), (260, 108102), (312, 90085), (344, 81705), (390, 72068), (419, 67080), (430, 65364), (516, 54470), (520, 54051), (559, 50280), (645, 43576), (780, 36034), (838, 33540), (860, 32682), (1032, 27235), (1118, 25140), (1257, 22360), (1290, 21788), (1560, 18017), (1676, 16770), (1677, 16760), (1720, 16341), (2095, 13416), (2236, 12570), (2514, 11180), (2580, 10894), (2795, 10056), (3352, 8385), (3354, 8380), (4190, 6708), (4472, 6285), (5028, 5590), (5160, 5447)]