180420

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{97}}^1$

素因数の和:140

約数の個数: 48

約数和(自身を含む): 526848

約数和(自身を除く): 346428

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 31, 60, 62, 93, 97, 124, 155, 186, 194, 291, 310, 372, 388, 465, 485, 582, 620, 930, 970, 1164, 1455, 1860, 1940, 2910, 3007, 5820, 6014, 9021, 12028, 15035, 18042, 30070, 36084, 45105, 60140, 90210, 180420]

約数ペア:

[(1, 180420), (2, 90210), (3, 60140), (4, 45105), (5, 36084), (6, 30070), (10, 18042), (12, 15035), (15, 12028), (20, 9021), (30, 6014), (31, 5820), (60, 3007), (62, 2910), (93, 1940), (97, 1860), (124, 1455), (155, 1164), (186, 970), (194, 930), (291, 620), (310, 582), (372, 485), (388, 465)]