80900360

素因数分解:

$2^3\times 5^1\times {\mathrm{131}}^1\times {\mathrm{15439}}^1$

素因数の和:15581

約数の個数: 32

約数和(自身を含む): 183427200

約数和(自身を除く): 102526840

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 131, 262, 524, 655, 1048, 1310, 2620, 5240, 15439, 30878, 61756, 77195, 123512, 154390, 308780, 617560, 2022509, 4045018, 8090036, 10112545, 16180072, 20225090, 40450180, 80900360]

約数ペア:

[(1, 80900360), (2, 40450180), (4, 20225090), (5, 16180072), (8, 10112545), (10, 8090036), (20, 4045018), (40, 2022509), (131, 617560), (262, 308780), (524, 154390), (655, 123512), (1048, 77195), (1310, 61756), (2620, 30878), (5240, 15439)]