12915820

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{829}}^1$

素因数の和:898

約数の個数: 48

約数和(自身を含む): 29282400

約数和(自身を除く): 16366580

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 41, 76, 82, 95, 164, 190, 205, 380, 410, 779, 820, 829, 1558, 1658, 3116, 3316, 3895, 4145, 7790, 8290, 15580, 15751, 16580, 31502, 33989, 63004, 67978, 78755, 135956, 157510, 169945, 315020, 339890, 645791, 679780, 1291582, 2583164, 3228955, 6457910, 12915820]

約数ペア:

[(1, 12915820), (2, 6457910), (4, 3228955), (5, 2583164), (10, 1291582), (19, 679780), (20, 645791), (38, 339890), (41, 315020), (76, 169945), (82, 157510), (95, 135956), (164, 78755), (190, 67978), (205, 63004), (380, 33989), (410, 31502), (779, 16580), (820, 15751), (829, 15580), (1558, 8290), (1658, 7790), (3116, 4145), (3316, 3895)]