80356640

素因数分解:

$2^5\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{5519}}^1$

素因数の和:5554

約数の個数: 96

約数和(自身を含む): 233694720

約数和(自身を除く): 153338080

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, 182, 208, 224, 260, 280, 364, 416, 455, 520, 560, 728, 910, 1040, 1120, 1456, 1820, 2080, 2912, 3640, 5519, 7280, 11038, 14560, 22076, 27595, 38633, 44152, 55190, 71747, 77266, 88304, 110380, 143494, 154532, 176608, 193165, 220760, 286988, 309064, 358735, 386330, 441520, 502229, 573976, 618128, 717470, 772660, 883040, 1004458, 1147952, 1236256, 1434940, 1545320, 2008916, 2295904, 2511145, 2869880, 3090640, 4017832, 5022290, 5739760, 6181280, 8035664, 10044580, 11479520, 16071328, 20089160, 40178320, 80356640]

約数ペア:

[(1, 80356640), (2, 40178320), (4, 20089160), (5, 16071328), (7, 11479520), (8, 10044580), (10, 8035664), (13, 6181280), (14, 5739760), (16, 5022290), (20, 4017832), (26, 3090640), (28, 2869880), (32, 2511145), (35, 2295904), (40, 2008916), (52, 1545320), (56, 1434940), (65, 1236256), (70, 1147952), (80, 1004458), (91, 883040), (104, 772660), (112, 717470), (130, 618128), (140, 573976), (160, 502229), (182, 441520), (208, 386330), (224, 358735), (260, 309064), (280, 286988), (364, 220760), (416, 193165), (455, 176608), (520, 154532), (560, 143494), (728, 110380), (910, 88304), (1040, 77266), (1120, 71747), (1456, 55190), (1820, 44152), (2080, 38633), (2912, 27595), (3640, 22076), (5519, 14560), (7280, 11038)]