20185704216

素因数分解:

$2^3\times 3^2\times {\mathrm{571}}^1\times {\mathrm{490993}}^1$

素因数の和:491576

約数の個数: 48

約数和(自身を含む): 54765470760

約数和(自身を除く): 34579766544

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 36, 72, 571, 1142, 1713, 2284, 3426, 4568, 5139, 6852, 10278, 13704, 20556, 41112, 490993, 981986, 1472979, 1963972, 2945958, 3927944, 4418937, 5891916, 8837874, 11783832, 17675748, 35351496, 280357003, 560714006, 841071009, 1121428012, 1682142018, 2242856024, 2523213027, 3364284036, 5046426054, 6728568072, 10092852108, 20185704216]

約数ペア:

[(1, 20185704216), (2, 10092852108), (3, 6728568072), (4, 5046426054), (6, 3364284036), (8, 2523213027), (9, 2242856024), (12, 1682142018), (18, 1121428012), (24, 841071009), (36, 560714006), (72, 280357003), (571, 35351496), (1142, 17675748), (1713, 11783832), (2284, 8837874), (3426, 5891916), (4568, 4418937), (5139, 3927944), (6852, 2945958), (10278, 1963972), (13704, 1472979), (20556, 981986), (41112, 490993)]