40858160

素因数分解:

$2^4\times 5^1\times 7^3\times {\mathrm{1489}}^1$

素因数の和:1523

約数の個数: 80

約数和(自身を含む): 110856000

約数和(自身を除く): 69997840

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 49, 56, 70, 80, 98, 112, 140, 196, 245, 280, 343, 392, 490, 560, 686, 784, 980, 1372, 1489, 1715, 1960, 2744, 2978, 3430, 3920, 5488, 5956, 6860, 7445, 10423, 11912, 13720, 14890, 20846, 23824, 27440, 29780, 41692, 52115, 59560, 72961, 83384, 104230, 119120, 145922, 166768, 208460, 291844, 364805, 416920, 510727, 583688, 729610, 833840, 1021454, 1167376, 1459220, 2042908, 2553635, 2918440, 4085816, 5107270, 5836880, 8171632, 10214540, 20429080, 40858160]

約数ペア:

[(1, 40858160), (2, 20429080), (4, 10214540), (5, 8171632), (7, 5836880), (8, 5107270), (10, 4085816), (14, 2918440), (16, 2553635), (20, 2042908), (28, 1459220), (35, 1167376), (40, 1021454), (49, 833840), (56, 729610), (70, 583688), (80, 510727), (98, 416920), (112, 364805), (140, 291844), (196, 208460), (245, 166768), (280, 145922), (343, 119120), (392, 104230), (490, 83384), (560, 72961), (686, 59560), (784, 52115), (980, 41692), (1372, 29780), (1489, 27440), (1715, 23824), (1960, 20846), (2744, 14890), (2978, 13720), (3430, 11912), (3920, 10423), (5488, 7445), (5956, 6860)]