20121207496

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{491}}^1\times {\mathrm{394039}}^1$

素因数の和:394549

約数の個数: 32

約数和(自身を含む): 40712212800

約数和(自身を除く): 20591005304

約数列:

[1, 2, 4, 8, 13, 26, 52, 104, 491, 982, 1964, 3928, 6383, 12766, 25532, 51064, 394039, 788078, 1576156, 3152312, 5122507, 10245014, 20490028, 40980056, 193473149, 386946298, 773892596, 1547785192, 2515150937, 5030301874, 10060603748, 20121207496]

約数ペア:

[(1, 20121207496), (2, 10060603748), (4, 5030301874), (8, 2515150937), (13, 1547785192), (26, 773892596), (52, 386946298), (104, 193473149), (491, 40980056), (982, 20490028), (1964, 10245014), (3928, 5122507), (6383, 3152312), (12766, 1576156), (25532, 788078), (51064, 394039)]