8981840

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{43}}^1\times {\mathrm{373}}^1$

素因数の和:436

約数の個数: 80

約数和(自身を含む): 24486528

約数和(自身を除く): 15504688

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 43, 56, 70, 80, 86, 112, 140, 172, 215, 280, 301, 344, 373, 430, 560, 602, 688, 746, 860, 1204, 1492, 1505, 1720, 1865, 2408, 2611, 2984, 3010, 3440, 3730, 4816, 5222, 5968, 6020, 7460, 10444, 12040, 13055, 14920, 16039, 20888, 24080, 26110, 29840, 32078, 41776, 52220, 64156, 80195, 104440, 112273, 128312, 160390, 208880, 224546, 256624, 320780, 449092, 561365, 641560, 898184, 1122730, 1283120, 1796368, 2245460, 4490920, 8981840]

約数ペア:

[(1, 8981840), (2, 4490920), (4, 2245460), (5, 1796368), (7, 1283120), (8, 1122730), (10, 898184), (14, 641560), (16, 561365), (20, 449092), (28, 320780), (35, 256624), (40, 224546), (43, 208880), (56, 160390), (70, 128312), (80, 112273), (86, 104440), (112, 80195), (140, 64156), (172, 52220), (215, 41776), (280, 32078), (301, 29840), (344, 26110), (373, 24080), (430, 20888), (560, 16039), (602, 14920), (688, 13055), (746, 12040), (860, 10444), (1204, 7460), (1492, 6020), (1505, 5968), (1720, 5222), (1865, 4816), (2408, 3730), (2611, 3440), (2984, 3010)]