20430690

素因数分解:

$2^1\times 3^1\times 5^1\times 7^1\times {\mathrm{271}}^1\times {\mathrm{359}}^1$

素因数の和:647

約数の個数: 64

約数和(自身を含む): 56401920

約数和(自身を除く): 35971230

約数列:

[1, 2, 3, 5, 6, 7, 10, 14, 15, 21, 30, 35, 42, 70, 105, 210, 271, 359, 542, 718, 813, 1077, 1355, 1626, 1795, 1897, 2154, 2513, 2710, 3590, 3794, 4065, 5026, 5385, 5691, 7539, 8130, 9485, 10770, 11382, 12565, 15078, 18970, 25130, 28455, 37695, 56910, 75390, 97289, 194578, 291867, 486445, 583734, 681023, 972890, 1362046, 1459335, 2043069, 2918670, 3405115, 4086138, 6810230, 10215345, 20430690]

約数ペア:

[(1, 20430690), (2, 10215345), (3, 6810230), (5, 4086138), (6, 3405115), (7, 2918670), (10, 2043069), (14, 1459335), (15, 1362046), (21, 972890), (30, 681023), (35, 583734), (42, 486445), (70, 291867), (105, 194578), (210, 97289), (271, 75390), (359, 56910), (542, 37695), (718, 28455), (813, 25130), (1077, 18970), (1355, 15078), (1626, 12565), (1795, 11382), (1897, 10770), (2154, 9485), (2513, 8130), (2710, 7539), (3590, 5691), (3794, 5385), (4065, 5026)]