81419180

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{167}}^1\times {\mathrm{1283}}^1$

素因数の和:1478

約数の個数: 48

約数和(自身を含む): 181198080

約数和(自身を除く): 99778900

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 167, 190, 334, 380, 668, 835, 1283, 1670, 2566, 3173, 3340, 5132, 6346, 6415, 12692, 12830, 15865, 24377, 25660, 31730, 48754, 63460, 97508, 121885, 214261, 243770, 428522, 487540, 857044, 1071305, 2142610, 4070959, 4285220, 8141918, 16283836, 20354795, 40709590, 81419180]

約数ペア:

[(1, 81419180), (2, 40709590), (4, 20354795), (5, 16283836), (10, 8141918), (19, 4285220), (20, 4070959), (38, 2142610), (76, 1071305), (95, 857044), (167, 487540), (190, 428522), (334, 243770), (380, 214261), (668, 121885), (835, 97508), (1283, 63460), (1670, 48754), (2566, 31730), (3173, 25660), (3340, 24377), (5132, 15865), (6346, 12830), (6415, 12692)]