61538680

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{271}}^1\times {\mathrm{811}}^1$

素因数の和:1100

約数の個数: 64

約数和(自身を含む): 159022080

約数和(自身を除く): 97483400

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 271, 280, 542, 811, 1084, 1355, 1622, 1897, 2168, 2710, 3244, 3794, 4055, 5420, 5677, 6488, 7588, 8110, 9485, 10840, 11354, 15176, 16220, 18970, 22708, 28385, 32440, 37940, 45416, 56770, 75880, 113540, 219781, 227080, 439562, 879124, 1098905, 1538467, 1758248, 2197810, 3076934, 4395620, 6153868, 7692335, 8791240, 12307736, 15384670, 30769340, 61538680]

約数ペア:

[(1, 61538680), (2, 30769340), (4, 15384670), (5, 12307736), (7, 8791240), (8, 7692335), (10, 6153868), (14, 4395620), (20, 3076934), (28, 2197810), (35, 1758248), (40, 1538467), (56, 1098905), (70, 879124), (140, 439562), (271, 227080), (280, 219781), (542, 113540), (811, 75880), (1084, 56770), (1355, 45416), (1622, 37940), (1897, 32440), (2168, 28385), (2710, 22708), (3244, 18970), (3794, 16220), (4055, 15176), (5420, 11354), (5677, 10840), (6488, 9485), (7588, 8110)]