18398950

素因数分解:

$2^1\times 5^2\times {\mathrm{53}}^2\times {\mathrm{131}}^1$

素因数の和:249

約数の個数: 36

約数和(自身を含む): 35146188

約数和(自身を除く): 16747238

約数列:

[1, 2, 5, 10, 25, 50, 53, 106, 131, 262, 265, 530, 655, 1310, 1325, 2650, 2809, 3275, 5618, 6550, 6943, 13886, 14045, 28090, 34715, 69430, 70225, 140450, 173575, 347150, 367979, 735958, 1839895, 3679790, 9199475, 18398950]

約数ペア:

[(1, 18398950), (2, 9199475), (5, 3679790), (10, 1839895), (25, 735958), (50, 367979), (53, 347150), (106, 173575), (131, 140450), (262, 70225), (265, 69430), (530, 34715), (655, 28090), (1310, 14045), (1325, 13886), (2650, 6943), (2809, 6550), (3275, 5618)]