8880680

素因数分解:

$2^3\times 5^1\times {\mathrm{53}}^1\times {\mathrm{59}}^1\times {\mathrm{71}}^1$

素因数の和:194

約数の個数: 64

約数和(自身を含む): 20995200

約数和(自身を除く): 12114520

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 53, 59, 71, 106, 118, 142, 212, 236, 265, 284, 295, 355, 424, 472, 530, 568, 590, 710, 1060, 1180, 1420, 2120, 2360, 2840, 3127, 3763, 4189, 6254, 7526, 8378, 12508, 15052, 15635, 16756, 18815, 20945, 25016, 30104, 31270, 33512, 37630, 41890, 62540, 75260, 83780, 125080, 150520, 167560, 222017, 444034, 888068, 1110085, 1776136, 2220170, 4440340, 8880680]

約数ペア:

[(1, 8880680), (2, 4440340), (4, 2220170), (5, 1776136), (8, 1110085), (10, 888068), (20, 444034), (40, 222017), (53, 167560), (59, 150520), (71, 125080), (106, 83780), (118, 75260), (142, 62540), (212, 41890), (236, 37630), (265, 33512), (284, 31270), (295, 30104), (355, 25016), (424, 20945), (472, 18815), (530, 16756), (568, 15635), (590, 15052), (710, 12508), (1060, 8378), (1180, 7526), (1420, 6254), (2120, 4189), (2360, 3763), (2840, 3127)]