20512995825

素因数分解:

$3^1\times 5^2\times 7^1\times {\mathrm{79}}^1\times {\mathrm{494587}}^1$

素因数の和:494686

約数の個数: 48

約数和(自身を含む): 39250503680

約数和(自身を除く): 18737507855

約数列:

[1, 3, 5, 7, 15, 21, 25, 35, 75, 79, 105, 175, 237, 395, 525, 553, 1185, 1659, 1975, 2765, 5925, 8295, 13825, 41475, 494587, 1483761, 2472935, 3462109, 7418805, 10386327, 12364675, 17310545, 37094025, 39072373, 51931635, 86552725, 117217119, 195361865, 259658175, 273506611, 586085595, 820519833, 976809325, 1367533055, 2930427975, 4102599165, 6837665275, 20512995825]

約数ペア:

[(1, 20512995825), (3, 6837665275), (5, 4102599165), (7, 2930427975), (15, 1367533055), (21, 976809325), (25, 820519833), (35, 586085595), (75, 273506611), (79, 259658175), (105, 195361865), (175, 117217119), (237, 86552725), (395, 51931635), (525, 39072373), (553, 37094025), (1185, 17310545), (1659, 12364675), (1975, 10386327), (2765, 7418805), (5925, 3462109), (8295, 2472935), (13825, 1483761), (41475, 494587)]