164172200

素因数分解:

$2^3\times 5^2\times {\mathrm{41}}^1\times {\mathrm{20021}}^1$

素因数の和:20078

約数の個数: 48

約数和(自身を含む): 391029660

約数和(自身を除く): 226857460

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 41, 50, 82, 100, 164, 200, 205, 328, 410, 820, 1025, 1640, 2050, 4100, 8200, 20021, 40042, 80084, 100105, 160168, 200210, 400420, 500525, 800840, 820861, 1001050, 1641722, 2002100, 3283444, 4004200, 4104305, 6566888, 8208610, 16417220, 20521525, 32834440, 41043050, 82086100, 164172200]

約数ペア:

[(1, 164172200), (2, 82086100), (4, 41043050), (5, 32834440), (8, 20521525), (10, 16417220), (20, 8208610), (25, 6566888), (40, 4104305), (41, 4004200), (50, 3283444), (82, 2002100), (100, 1641722), (164, 1001050), (200, 820861), (205, 800840), (328, 500525), (410, 400420), (820, 200210), (1025, 160168), (1640, 100105), (2050, 80084), (4100, 40042), (8200, 20021)]