20081600

素因数分解:

$2^6\times 5^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{163}}^1$

素因数の和:203

約数の個数: 168

約数和(自身を含む): 61984128

約数和(自身を除く): 41902528

約数列:

[1, 2, 4, 5, 7, 8, 10, 11, 14, 16, 20, 22, 25, 28, 32, 35, 40, 44, 50, 55, 56, 64, 70, 77, 80, 88, 100, 110, 112, 140, 154, 160, 163, 175, 176, 200, 220, 224, 275, 280, 308, 320, 326, 350, 352, 385, 400, 440, 448, 550, 560, 616, 652, 700, 704, 770, 800, 815, 880, 1100, 1120, 1141, 1232, 1304, 1400, 1540, 1600, 1630, 1760, 1793, 1925, 2200, 2240, 2282, 2464, 2608, 2800, 3080, 3260, 3520, 3586, 3850, 4075, 4400, 4564, 4928, 5216, 5600, 5705, 6160, 6520, 7172, 7700, 8150, 8800, 8965, 9128, 10432, 11200, 11410, 12320, 12551, 13040, 14344, 15400, 16300, 17600, 17930, 18256, 22820, 24640, 25102, 26080, 28525, 28688, 30800, 32600, 35860, 36512, 44825, 45640, 50204, 52160, 57050, 57376, 61600, 62755, 65200, 71720, 73024, 89650, 91280, 100408, 114100, 114752, 123200, 125510, 130400, 143440, 179300, 182560, 200816, 228200, 251020, 260800, 286880, 313775, 358600, 365120, 401632, 456400, 502040, 573760, 627550, 717200, 803264, 912800, 1004080, 1255100, 1434400, 1825600, 2008160, 2510200, 2868800, 4016320, 5020400, 10040800, 20081600]

約数ペア:

[(1, 20081600), (2, 10040800), (4, 5020400), (5, 4016320), (7, 2868800), (8, 2510200), (10, 2008160), (11, 1825600), (14, 1434400), (16, 1255100), (20, 1004080), (22, 912800), (25, 803264), (28, 717200), (32, 627550), (35, 573760), (40, 502040), (44, 456400), (50, 401632), (55, 365120), (56, 358600), (64, 313775), (70, 286880), (77, 260800), (80, 251020), (88, 228200), (100, 200816), (110, 182560), (112, 179300), (140, 143440), (154, 130400), (160, 125510), (163, 123200), (175, 114752), (176, 114100), (200, 100408), (220, 91280), (224, 89650), (275, 73024), (280, 71720), (308, 65200), (320, 62755), (326, 61600), (350, 57376), (352, 57050), (385, 52160), (400, 50204), (440, 45640), (448, 44825), (550, 36512), (560, 35860), (616, 32600), (652, 30800), (700, 28688), (704, 28525), (770, 26080), (800, 25102), (815, 24640), (880, 22820), (1100, 18256), (1120, 17930), (1141, 17600), (1232, 16300), (1304, 15400), (1400, 14344), (1540, 13040), (1600, 12551), (1630, 12320), (1760, 11410), (1793, 11200), (1925, 10432), (2200, 9128), (2240, 8965), (2282, 8800), (2464, 8150), (2608, 7700), (2800, 7172), (3080, 6520), (3260, 6160), (3520, 5705), (3586, 5600), (3850, 5216), (4075, 4928), (4400, 4564)]