25039720

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{47}}^1\times {\mathrm{701}}^1$

素因数の和:778

約数の個数: 64

約数和(自身を含む): 60652800

約数和(自身を除く): 35613080

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 47, 76, 94, 95, 152, 188, 190, 235, 376, 380, 470, 701, 760, 893, 940, 1402, 1786, 1880, 2804, 3505, 3572, 4465, 5608, 7010, 7144, 8930, 13319, 14020, 17860, 26638, 28040, 32947, 35720, 53276, 65894, 66595, 106552, 131788, 133190, 164735, 263576, 266380, 329470, 532760, 625993, 658940, 1251986, 1317880, 2503972, 3129965, 5007944, 6259930, 12519860, 25039720]

約数ペア:

[(1, 25039720), (2, 12519860), (4, 6259930), (5, 5007944), (8, 3129965), (10, 2503972), (19, 1317880), (20, 1251986), (38, 658940), (40, 625993), (47, 532760), (76, 329470), (94, 266380), (95, 263576), (152, 164735), (188, 133190), (190, 131788), (235, 106552), (376, 66595), (380, 65894), (470, 53276), (701, 35720), (760, 32947), (893, 28040), (940, 26638), (1402, 17860), (1786, 14020), (1880, 13319), (2804, 8930), (3505, 7144), (3572, 7010), (4465, 5608)]