1778991240

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{1140379}}^1$

素因数の和:1140406

約数の個数: 64

約数和(自身を含む): 5747515200

約数和(自身を除く): 3968523960

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 20, 24, 26, 30, 39, 40, 52, 60, 65, 78, 104, 120, 130, 156, 195, 260, 312, 390, 520, 780, 1560, 1140379, 2280758, 3421137, 4561516, 5701895, 6842274, 9123032, 11403790, 13684548, 14824927, 17105685, 22807580, 27369096, 29649854, 34211370, 44474781, 45615160, 59299708, 68422740, 74124635, 88949562, 118599416, 136845480, 148249270, 177899124, 222373905, 296498540, 355798248, 444747810, 592997080, 889495620, 1778991240]

約数ペア:

[(1, 1778991240), (2, 889495620), (3, 592997080), (4, 444747810), (5, 355798248), (6, 296498540), (8, 222373905), (10, 177899124), (12, 148249270), (13, 136845480), (15, 118599416), (20, 88949562), (24, 74124635), (26, 68422740), (30, 59299708), (39, 45615160), (40, 44474781), (52, 34211370), (60, 29649854), (65, 27369096), (78, 22807580), (104, 17105685), (120, 14824927), (130, 13684548), (156, 11403790), (195, 9123032), (260, 6842274), (312, 5701895), (390, 4561516), (520, 3421137), (780, 2280758), (1560, 1140379)]