79921520

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{43}}^1\times {\mathrm{3319}}^1$

素因数の和:3382

約数の個数: 80

約数和(自身を含む): 217367040

約数和(自身を除く): 137445520

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 43, 56, 70, 80, 86, 112, 140, 172, 215, 280, 301, 344, 430, 560, 602, 688, 860, 1204, 1505, 1720, 2408, 3010, 3319, 3440, 4816, 6020, 6638, 12040, 13276, 16595, 23233, 24080, 26552, 33190, 46466, 53104, 66380, 92932, 116165, 132760, 142717, 185864, 232330, 265520, 285434, 371728, 464660, 570868, 713585, 929320, 999019, 1141736, 1427170, 1858640, 1998038, 2283472, 2854340, 3996076, 4995095, 5708680, 7992152, 9990190, 11417360, 15984304, 19980380, 39960760, 79921520]

約数ペア:

[(1, 79921520), (2, 39960760), (4, 19980380), (5, 15984304), (7, 11417360), (8, 9990190), (10, 7992152), (14, 5708680), (16, 4995095), (20, 3996076), (28, 2854340), (35, 2283472), (40, 1998038), (43, 1858640), (56, 1427170), (70, 1141736), (80, 999019), (86, 929320), (112, 713585), (140, 570868), (172, 464660), (215, 371728), (280, 285434), (301, 265520), (344, 232330), (430, 185864), (560, 142717), (602, 132760), (688, 116165), (860, 92932), (1204, 66380), (1505, 53104), (1720, 46466), (2408, 33190), (3010, 26552), (3319, 24080), (3440, 23233), (4816, 16595), (6020, 13276), (6638, 12040)]