209911520

素因数分解:

$2^5\times 5^1\times 7^1\times {\mathrm{13}}^2\times {\mathrm{1109}}^1$

素因数の和:1157

約数の個数: 144

約数和(自身を含む): 614265120

約数和(自身を除く): 404353600

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 16, 20, 26, 28, 32, 35, 40, 52, 56, 65, 70, 80, 91, 104, 112, 130, 140, 160, 169, 182, 208, 224, 260, 280, 338, 364, 416, 455, 520, 560, 676, 728, 845, 910, 1040, 1109, 1120, 1183, 1352, 1456, 1690, 1820, 2080, 2218, 2366, 2704, 2912, 3380, 3640, 4436, 4732, 5408, 5545, 5915, 6760, 7280, 7763, 8872, 9464, 11090, 11830, 13520, 14417, 14560, 15526, 17744, 18928, 22180, 23660, 27040, 28834, 31052, 35488, 37856, 38815, 44360, 47320, 57668, 62104, 72085, 77630, 88720, 94640, 100919, 115336, 124208, 144170, 155260, 177440, 187421, 189280, 201838, 230672, 248416, 288340, 310520, 374842, 403676, 461344, 504595, 576680, 621040, 749684, 807352, 937105, 1009190, 1153360, 1242080, 1311947, 1499368, 1614704, 1874210, 2018380, 2306720, 2623894, 2998736, 3229408, 3748420, 4036760, 5247788, 5997472, 6559735, 7496840, 8073520, 10495576, 13119470, 14993680, 16147040, 20991152, 26238940, 29987360, 41982304, 52477880, 104955760, 209911520]

約数ペア:

[(1, 209911520), (2, 104955760), (4, 52477880), (5, 41982304), (7, 29987360), (8, 26238940), (10, 20991152), (13, 16147040), (14, 14993680), (16, 13119470), (20, 10495576), (26, 8073520), (28, 7496840), (32, 6559735), (35, 5997472), (40, 5247788), (52, 4036760), (56, 3748420), (65, 3229408), (70, 2998736), (80, 2623894), (91, 2306720), (104, 2018380), (112, 1874210), (130, 1614704), (140, 1499368), (160, 1311947), (169, 1242080), (182, 1153360), (208, 1009190), (224, 937105), (260, 807352), (280, 749684), (338, 621040), (364, 576680), (416, 504595), (455, 461344), (520, 403676), (560, 374842), (676, 310520), (728, 288340), (845, 248416), (910, 230672), (1040, 201838), (1109, 189280), (1120, 187421), (1183, 177440), (1352, 155260), (1456, 144170), (1690, 124208), (1820, 115336), (2080, 100919), (2218, 94640), (2366, 88720), (2704, 77630), (2912, 72085), (3380, 62104), (3640, 57668), (4436, 47320), (4732, 44360), (5408, 38815), (5545, 37856), (5915, 35488), (6760, 31052), (7280, 28834), (7763, 27040), (8872, 23660), (9464, 22180), (11090, 18928), (11830, 17744), (13520, 15526), (14417, 14560)]