18953080

素因数分解:

$2^3\times 5^1\times {\mathrm{131}}^1\times {\mathrm{3617}}^1$

素因数の和:3759

約数の個数: 32

約数和(自身を含む): 42981840

約数和(自身を除く): 24028760

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 131, 262, 524, 655, 1048, 1310, 2620, 3617, 5240, 7234, 14468, 18085, 28936, 36170, 72340, 144680, 473827, 947654, 1895308, 2369135, 3790616, 4738270, 9476540, 18953080]

約数ペア:

[(1, 18953080), (2, 9476540), (4, 4738270), (5, 3790616), (8, 2369135), (10, 1895308), (20, 947654), (40, 473827), (131, 144680), (262, 72340), (524, 36170), (655, 28936), (1048, 18085), (1310, 14468), (2620, 7234), (3617, 5240)]