28730920

素因数分解:

$2^3\times 5^1\times {\mathrm{131}}^1\times {\mathrm{5483}}^1$

素因数の和:5625

約数の個数: 32

約数和(自身を含む): 65149920

約数和(自身を除く): 36419000

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 131, 262, 524, 655, 1048, 1310, 2620, 5240, 5483, 10966, 21932, 27415, 43864, 54830, 109660, 219320, 718273, 1436546, 2873092, 3591365, 5746184, 7182730, 14365460, 28730920]

約数ペア:

[(1, 28730920), (2, 14365460), (4, 7182730), (5, 5746184), (8, 3591365), (10, 2873092), (20, 1436546), (40, 718273), (131, 219320), (262, 109660), (524, 54830), (655, 43864), (1048, 27415), (1310, 21932), (2620, 10966), (5240, 5483)]