20579280

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{4513}}^1$

素因数の和:4548

約数の個数: 80

約数和(自身を含む): 67168320

約数和(自身を除く): 46589040

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 19, 20, 24, 30, 38, 40, 48, 57, 60, 76, 80, 95, 114, 120, 152, 190, 228, 240, 285, 304, 380, 456, 570, 760, 912, 1140, 1520, 2280, 4513, 4560, 9026, 13539, 18052, 22565, 27078, 36104, 45130, 54156, 67695, 72208, 85747, 90260, 108312, 135390, 171494, 180520, 216624, 257241, 270780, 342988, 361040, 428735, 514482, 541560, 685976, 857470, 1028964, 1083120, 1286205, 1371952, 1714940, 2057928, 2572410, 3429880, 4115856, 5144820, 6859760, 10289640, 20579280]

約数ペア:

[(1, 20579280), (2, 10289640), (3, 6859760), (4, 5144820), (5, 4115856), (6, 3429880), (8, 2572410), (10, 2057928), (12, 1714940), (15, 1371952), (16, 1286205), (19, 1083120), (20, 1028964), (24, 857470), (30, 685976), (38, 541560), (40, 514482), (48, 428735), (57, 361040), (60, 342988), (76, 270780), (80, 257241), (95, 216624), (114, 180520), (120, 171494), (152, 135390), (190, 108312), (228, 90260), (240, 85747), (285, 72208), (304, 67695), (380, 54156), (456, 45130), (570, 36104), (760, 27078), (912, 22565), (1140, 18052), (1520, 13539), (2280, 9026), (4513, 4560)]