12915440

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{293}}^1$

素因数の和:354

約数の個数: 80

約数和(自身を含む): 32810400

約数和(自身を除く): 19894960

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 29, 38, 40, 58, 76, 80, 95, 116, 145, 152, 190, 232, 290, 293, 304, 380, 464, 551, 580, 586, 760, 1102, 1160, 1172, 1465, 1520, 2204, 2320, 2344, 2755, 2930, 4408, 4688, 5510, 5567, 5860, 8497, 8816, 11020, 11134, 11720, 16994, 22040, 22268, 23440, 27835, 33988, 42485, 44080, 44536, 55670, 67976, 84970, 89072, 111340, 135952, 161443, 169940, 222680, 322886, 339880, 445360, 645772, 679760, 807215, 1291544, 1614430, 2583088, 3228860, 6457720, 12915440]

約数ペア:

[(1, 12915440), (2, 6457720), (4, 3228860), (5, 2583088), (8, 1614430), (10, 1291544), (16, 807215), (19, 679760), (20, 645772), (29, 445360), (38, 339880), (40, 322886), (58, 222680), (76, 169940), (80, 161443), (95, 135952), (116, 111340), (145, 89072), (152, 84970), (190, 67976), (232, 55670), (290, 44536), (293, 44080), (304, 42485), (380, 33988), (464, 27835), (551, 23440), (580, 22268), (586, 22040), (760, 16994), (1102, 11720), (1160, 11134), (1172, 11020), (1465, 8816), (1520, 8497), (2204, 5860), (2320, 5567), (2344, 5510), (2755, 4688), (2930, 4408)]