1318260880

素因数分解:

$2^4\times 5^1\times {\mathrm{89}}^1\times {\mathrm{185149}}^1$

素因数の和:185251

約数の個数: 40

約数和(自身を含む): 3099411000

約数和(自身を除く): 1781150120

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 89, 178, 356, 445, 712, 890, 1424, 1780, 3560, 7120, 185149, 370298, 740596, 925745, 1481192, 1851490, 2962384, 3702980, 7405960, 14811920, 16478261, 32956522, 65913044, 82391305, 131826088, 164782610, 263652176, 329565220, 659130440, 1318260880]

約数ペア:

[(1, 1318260880), (2, 659130440), (4, 329565220), (5, 263652176), (8, 164782610), (10, 131826088), (16, 82391305), (20, 65913044), (40, 32956522), (80, 16478261), (89, 14811920), (178, 7405960), (356, 3702980), (445, 2962384), (712, 1851490), (890, 1481192), (1424, 925745), (1780, 740596), (3560, 370298), (7120, 185149)]