28459900

素因数分解:

$2^2\times 5^2\times 7^1\times {\mathrm{109}}^1\times {\mathrm{373}}^1$

素因数の和:503

約数の個数: 72

約数和(自身を含む): 71419040

約数和(自身を除く): 42959140

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 25, 28, 35, 50, 70, 100, 109, 140, 175, 218, 350, 373, 436, 545, 700, 746, 763, 1090, 1492, 1526, 1865, 2180, 2611, 2725, 3052, 3730, 3815, 5222, 5450, 7460, 7630, 9325, 10444, 10900, 13055, 15260, 18650, 19075, 26110, 37300, 38150, 40657, 52220, 65275, 76300, 81314, 130550, 162628, 203285, 261100, 284599, 406570, 569198, 813140, 1016425, 1138396, 1422995, 2032850, 2845990, 4065700, 5691980, 7114975, 14229950, 28459900]

約数ペア:

[(1, 28459900), (2, 14229950), (4, 7114975), (5, 5691980), (7, 4065700), (10, 2845990), (14, 2032850), (20, 1422995), (25, 1138396), (28, 1016425), (35, 813140), (50, 569198), (70, 406570), (100, 284599), (109, 261100), (140, 203285), (175, 162628), (218, 130550), (350, 81314), (373, 76300), (436, 65275), (545, 52220), (700, 40657), (746, 38150), (763, 37300), (1090, 26110), (1492, 19075), (1526, 18650), (1865, 15260), (2180, 13055), (2611, 10900), (2725, 10444), (3052, 9325), (3730, 7630), (3815, 7460), (5222, 5450)]