18032720

素因数分解:

$2^4\times 5^1\times {\mathrm{53}}^1\times {\mathrm{4253}}^1$

素因数の和:4319

約数の個数: 40

約数和(自身を含む): 42727176

約数和(自身を除く): 24694456

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 53, 80, 106, 212, 265, 424, 530, 848, 1060, 2120, 4240, 4253, 8506, 17012, 21265, 34024, 42530, 68048, 85060, 170120, 225409, 340240, 450818, 901636, 1127045, 1803272, 2254090, 3606544, 4508180, 9016360, 18032720]

約数ペア:

[(1, 18032720), (2, 9016360), (4, 4508180), (5, 3606544), (8, 2254090), (10, 1803272), (16, 1127045), (20, 901636), (40, 450818), (53, 340240), (80, 225409), (106, 170120), (212, 85060), (265, 68048), (424, 42530), (530, 34024), (848, 21265), (1060, 17012), (2120, 8506), (4240, 4253)]