16780000

素因数分解:

$2^5\times 5^4\times {\mathrm{839}}^1$

素因数の和:869

約数の個数: 60

約数和(自身を含む): 41330520

約数和(自身を除く): 24550520

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 80, 100, 125, 160, 200, 250, 400, 500, 625, 800, 839, 1000, 1250, 1678, 2000, 2500, 3356, 4000, 4195, 5000, 6712, 8390, 10000, 13424, 16780, 20000, 20975, 26848, 33560, 41950, 67120, 83900, 104875, 134240, 167800, 209750, 335600, 419500, 524375, 671200, 839000, 1048750, 1678000, 2097500, 3356000, 4195000, 8390000, 16780000]

約数ペア:

[(1, 16780000), (2, 8390000), (4, 4195000), (5, 3356000), (8, 2097500), (10, 1678000), (16, 1048750), (20, 839000), (25, 671200), (32, 524375), (40, 419500), (50, 335600), (80, 209750), (100, 167800), (125, 134240), (160, 104875), (200, 83900), (250, 67120), (400, 41950), (500, 33560), (625, 26848), (800, 20975), (839, 20000), (1000, 16780), (1250, 13424), (1678, 10000), (2000, 8390), (2500, 6712), (3356, 5000), (4000, 4195)]