127801520

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{20747}}^1$

素因数の和:20778

約数の個数: 80

約数和(自身を含む): 370476288

約数和(自身を除く): 242674768

約数列:

[1, 2, 4, 5, 7, 8, 10, 11, 14, 16, 20, 22, 28, 35, 40, 44, 55, 56, 70, 77, 80, 88, 110, 112, 140, 154, 176, 220, 280, 308, 385, 440, 560, 616, 770, 880, 1232, 1540, 3080, 6160, 20747, 41494, 82988, 103735, 145229, 165976, 207470, 228217, 290458, 331952, 414940, 456434, 580916, 726145, 829880, 912868, 1141085, 1161832, 1452290, 1597519, 1659760, 1825736, 2282170, 2323664, 2904580, 3195038, 3651472, 4564340, 5809160, 6390076, 7987595, 9128680, 11618320, 12780152, 15975190, 18257360, 25560304, 31950380, 63900760, 127801520]

約数ペア:

[(1, 127801520), (2, 63900760), (4, 31950380), (5, 25560304), (7, 18257360), (8, 15975190), (10, 12780152), (11, 11618320), (14, 9128680), (16, 7987595), (20, 6390076), (22, 5809160), (28, 4564340), (35, 3651472), (40, 3195038), (44, 2904580), (55, 2323664), (56, 2282170), (70, 1825736), (77, 1659760), (80, 1597519), (88, 1452290), (110, 1161832), (112, 1141085), (140, 912868), (154, 829880), (176, 726145), (220, 580916), (280, 456434), (308, 414940), (385, 331952), (440, 290458), (560, 228217), (616, 207470), (770, 165976), (880, 145229), (1232, 103735), (1540, 82988), (3080, 41494), (6160, 20747)]