39923620

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{89}}^1\times {\mathrm{2039}}^1$

素因数の和:2148

約数の個数: 48

約数和(自身を含む): 92534400

約数和(自身を除く): 52610780

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 89, 110, 178, 220, 356, 445, 890, 979, 1780, 1958, 2039, 3916, 4078, 4895, 8156, 9790, 10195, 19580, 20390, 22429, 40780, 44858, 89716, 112145, 181471, 224290, 362942, 448580, 725884, 907355, 1814710, 1996181, 3629420, 3992362, 7984724, 9980905, 19961810, 39923620]

約数ペア:

[(1, 39923620), (2, 19961810), (4, 9980905), (5, 7984724), (10, 3992362), (11, 3629420), (20, 1996181), (22, 1814710), (44, 907355), (55, 725884), (89, 448580), (110, 362942), (178, 224290), (220, 181471), (356, 112145), (445, 89716), (890, 44858), (979, 40780), (1780, 22429), (1958, 20390), (2039, 19580), (3916, 10195), (4078, 9790), (4895, 8156)]