20455888900

素因数分解:

$2^2\times 5^2\times {\mathrm{16763}}^1\times {\mathrm{12203}}^1$

素因数の和:28980

約数の個数: 36

約数和(自身を含む): 44395564752

約数和(自身を除く): 23939675852

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 12203, 16763, 24406, 33526, 48812, 61015, 67052, 83815, 122030, 167630, 244060, 305075, 335260, 419075, 610150, 838150, 1220300, 1676300, 204558889, 409117778, 818235556, 1022794445, 2045588890, 4091177780, 5113972225, 10227944450, 20455888900]

約数ペア:

[(1, 20455888900), (2, 10227944450), (4, 5113972225), (5, 4091177780), (10, 2045588890), (20, 1022794445), (25, 818235556), (50, 409117778), (100, 204558889), (12203, 1676300), (16763, 1220300), (24406, 838150), (33526, 610150), (48812, 419075), (61015, 335260), (67052, 305075), (83815, 244060), (122030, 167630)]