84421840

素因数分解:

$2^4\times 5^1\times {\mathrm{71}}^1\times {\mathrm{89}}^1\times {\mathrm{167}}^1$

素因数の和:340

約数の個数: 80

約数和(自身を含む): 202487040

約数和(自身を除く): 118065200

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 71, 80, 89, 142, 167, 178, 284, 334, 355, 356, 445, 568, 668, 710, 712, 835, 890, 1136, 1336, 1420, 1424, 1670, 1780, 2672, 2840, 3340, 3560, 5680, 6319, 6680, 7120, 11857, 12638, 13360, 14863, 23714, 25276, 29726, 31595, 47428, 50552, 59285, 59452, 63190, 74315, 94856, 101104, 118570, 118904, 126380, 148630, 189712, 237140, 237808, 252760, 297260, 474280, 505520, 594520, 948560, 1055273, 1189040, 2110546, 4221092, 5276365, 8442184, 10552730, 16884368, 21105460, 42210920, 84421840]

約数ペア:

[(1, 84421840), (2, 42210920), (4, 21105460), (5, 16884368), (8, 10552730), (10, 8442184), (16, 5276365), (20, 4221092), (40, 2110546), (71, 1189040), (80, 1055273), (89, 948560), (142, 594520), (167, 505520), (178, 474280), (284, 297260), (334, 252760), (355, 237808), (356, 237140), (445, 189712), (568, 148630), (668, 126380), (710, 118904), (712, 118570), (835, 101104), (890, 94856), (1136, 74315), (1336, 63190), (1420, 59452), (1424, 59285), (1670, 50552), (1780, 47428), (2672, 31595), (2840, 29726), (3340, 25276), (3560, 23714), (5680, 14863), (6319, 13360), (6680, 12638), (7120, 11857)]