18315760

素因数分解:

$2^4\times 5^1\times {\mathrm{283}}^1\times {\mathrm{809}}^1$

素因数の和:1105

約数の個数: 40

約数和(自身を含む): 42787440

約数和(自身を除く): 24471680

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 283, 566, 809, 1132, 1415, 1618, 2264, 2830, 3236, 4045, 4528, 5660, 6472, 8090, 11320, 12944, 16180, 22640, 32360, 64720, 228947, 457894, 915788, 1144735, 1831576, 2289470, 3663152, 4578940, 9157880, 18315760]

約数ペア:

[(1, 18315760), (2, 9157880), (4, 4578940), (5, 3663152), (8, 2289470), (10, 1831576), (16, 1144735), (20, 915788), (40, 457894), (80, 228947), (283, 64720), (566, 32360), (809, 22640), (1132, 16180), (1415, 12944), (1618, 11320), (2264, 8090), (2830, 6472), (3236, 5660), (4045, 4528)]