287490280

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{3011}}^1$

素因数の和:3071

約数の個数: 128

約数和(自身を含む): 832757760

約数和(自身を除く): 545267480

約数列:

[1, 2, 4, 5, 7, 8, 10, 11, 14, 20, 22, 28, 31, 35, 40, 44, 55, 56, 62, 70, 77, 88, 110, 124, 140, 154, 155, 217, 220, 248, 280, 308, 310, 341, 385, 434, 440, 616, 620, 682, 770, 868, 1085, 1240, 1364, 1540, 1705, 1736, 2170, 2387, 2728, 3011, 3080, 3410, 4340, 4774, 6022, 6820, 8680, 9548, 11935, 12044, 13640, 15055, 19096, 21077, 23870, 24088, 30110, 33121, 42154, 47740, 60220, 66242, 84308, 93341, 95480, 105385, 120440, 132484, 165605, 168616, 186682, 210770, 231847, 264968, 331210, 373364, 421540, 463694, 466705, 653387, 662420, 746728, 843080, 927388, 933410, 1026751, 1159235, 1306774, 1324840, 1854776, 1866820, 2053502, 2318470, 2613548, 3266935, 3733640, 4107004, 4636940, 5133755, 5227096, 6533870, 7187257, 8214008, 9273880, 10267510, 13067740, 14374514, 20535020, 26135480, 28749028, 35936285, 41070040, 57498056, 71872570, 143745140, 287490280]

約数ペア:

[(1, 287490280), (2, 143745140), (4, 71872570), (5, 57498056), (7, 41070040), (8, 35936285), (10, 28749028), (11, 26135480), (14, 20535020), (20, 14374514), (22, 13067740), (28, 10267510), (31, 9273880), (35, 8214008), (40, 7187257), (44, 6533870), (55, 5227096), (56, 5133755), (62, 4636940), (70, 4107004), (77, 3733640), (88, 3266935), (110, 2613548), (124, 2318470), (140, 2053502), (154, 1866820), (155, 1854776), (217, 1324840), (220, 1306774), (248, 1159235), (280, 1026751), (308, 933410), (310, 927388), (341, 843080), (385, 746728), (434, 662420), (440, 653387), (616, 466705), (620, 463694), (682, 421540), (770, 373364), (868, 331210), (1085, 264968), (1240, 231847), (1364, 210770), (1540, 186682), (1705, 168616), (1736, 165605), (2170, 132484), (2387, 120440), (2728, 105385), (3011, 95480), (3080, 93341), (3410, 84308), (4340, 66242), (4774, 60220), (6022, 47740), (6820, 42154), (8680, 33121), (9548, 30110), (11935, 24088), (12044, 23870), (13640, 21077), (15055, 19096)]