68341280

素因数分解:

$2^5\times 5^1\times 7^2\times {\mathrm{23}}^1\times {\mathrm{379}}^1$

素因数の和:431

約数の個数: 144

約数和(自身を含む): 196499520

約数和(自身を除く): 128158240

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 23, 28, 32, 35, 40, 46, 49, 56, 70, 80, 92, 98, 112, 115, 140, 160, 161, 184, 196, 224, 230, 245, 280, 322, 368, 379, 392, 460, 490, 560, 644, 736, 758, 784, 805, 920, 980, 1120, 1127, 1288, 1516, 1568, 1610, 1840, 1895, 1960, 2254, 2576, 2653, 3032, 3220, 3680, 3790, 3920, 4508, 5152, 5306, 5635, 6064, 6440, 7580, 7840, 8717, 9016, 10612, 11270, 12128, 12880, 13265, 15160, 17434, 18032, 18571, 21224, 22540, 25760, 26530, 30320, 34868, 36064, 37142, 42448, 43585, 45080, 53060, 60640, 61019, 69736, 74284, 84896, 87170, 90160, 92855, 106120, 122038, 139472, 148568, 174340, 180320, 185710, 212240, 244076, 278944, 297136, 305095, 348680, 371420, 424480, 427133, 488152, 594272, 610190, 697360, 742840, 854266, 976304, 1220380, 1394720, 1485680, 1708532, 1952608, 2135665, 2440760, 2971360, 3417064, 4271330, 4881520, 6834128, 8542660, 9763040, 13668256, 17085320, 34170640, 68341280]

約数ペア:

[(1, 68341280), (2, 34170640), (4, 17085320), (5, 13668256), (7, 9763040), (8, 8542660), (10, 6834128), (14, 4881520), (16, 4271330), (20, 3417064), (23, 2971360), (28, 2440760), (32, 2135665), (35, 1952608), (40, 1708532), (46, 1485680), (49, 1394720), (56, 1220380), (70, 976304), (80, 854266), (92, 742840), (98, 697360), (112, 610190), (115, 594272), (140, 488152), (160, 427133), (161, 424480), (184, 371420), (196, 348680), (224, 305095), (230, 297136), (245, 278944), (280, 244076), (322, 212240), (368, 185710), (379, 180320), (392, 174340), (460, 148568), (490, 139472), (560, 122038), (644, 106120), (736, 92855), (758, 90160), (784, 87170), (805, 84896), (920, 74284), (980, 69736), (1120, 61019), (1127, 60640), (1288, 53060), (1516, 45080), (1568, 43585), (1610, 42448), (1840, 37142), (1895, 36064), (1960, 34868), (2254, 30320), (2576, 26530), (2653, 25760), (3032, 22540), (3220, 21224), (3680, 18571), (3790, 18032), (3920, 17434), (4508, 15160), (5152, 13265), (5306, 12880), (5635, 12128), (6064, 11270), (6440, 10612), (7580, 9016), (7840, 8717)]