18308560

素因数分解:

$2^4\times 5^1\times {\mathrm{131}}^1\times {\mathrm{1747}}^1$

素因数の和:1891

約数の個数: 40

約数和(自身を含む): 42916896

約数和(自身を除く): 24608336

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 131, 262, 524, 655, 1048, 1310, 1747, 2096, 2620, 3494, 5240, 6988, 8735, 10480, 13976, 17470, 27952, 34940, 69880, 139760, 228857, 457714, 915428, 1144285, 1830856, 2288570, 3661712, 4577140, 9154280, 18308560]

約数ペア:

[(1, 18308560), (2, 9154280), (4, 4577140), (5, 3661712), (8, 2288570), (10, 1830856), (16, 1144285), (20, 915428), (40, 457714), (80, 228857), (131, 139760), (262, 69880), (524, 34940), (655, 27952), (1048, 17470), (1310, 13976), (1747, 10480), (2096, 8735), (2620, 6988), (3494, 5240)]