18349265560

素因数分解:

$2^3\times 5^1\times {\mathrm{71}}^1\times {\mathrm{197}}^1\times {\mathrm{32797}}^1$

素因数の和:33076

約数の個数: 64

約数和(自身を含む): 42081145920

約数和(自身を除く): 23731880360

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 71, 142, 197, 284, 355, 394, 568, 710, 788, 985, 1420, 1576, 1970, 2840, 3940, 7880, 13987, 27974, 32797, 55948, 65594, 69935, 111896, 131188, 139870, 163985, 262376, 279740, 327970, 559480, 655940, 1311880, 2328587, 4657174, 6461009, 9314348, 11642935, 12922018, 18628696, 23285870, 25844036, 32305045, 46571740, 51688072, 64610090, 93143480, 129220180, 258440360, 458731639, 917463278, 1834926556, 2293658195, 3669853112, 4587316390, 9174632780, 18349265560]

約数ペア:

[(1, 18349265560), (2, 9174632780), (4, 4587316390), (5, 3669853112), (8, 2293658195), (10, 1834926556), (20, 917463278), (40, 458731639), (71, 258440360), (142, 129220180), (197, 93143480), (284, 64610090), (355, 51688072), (394, 46571740), (568, 32305045), (710, 25844036), (788, 23285870), (985, 18628696), (1420, 12922018), (1576, 11642935), (1970, 9314348), (2840, 6461009), (3940, 4657174), (7880, 2328587), (13987, 1311880), (27974, 655940), (32797, 559480), (55948, 327970), (65594, 279740), (69935, 262376), (111896, 163985), (131188, 139870)]