565518340

素因数分解:

$2^2\times 5^1\times {\mathrm{79}}^1\times {\mathrm{359}}^1\times {\mathrm{997}}^1$

素因数の和:1444

約数の個数: 48

約数和(自身を含む): 1207180800

約数和(自身を除く): 641662460

約数列:

[1, 2, 4, 5, 10, 20, 79, 158, 316, 359, 395, 718, 790, 997, 1436, 1580, 1795, 1994, 3590, 3988, 4985, 7180, 9970, 19940, 28361, 56722, 78763, 113444, 141805, 157526, 283610, 315052, 357923, 393815, 567220, 715846, 787630, 1431692, 1575260, 1789615, 3579230, 7158460, 28275917, 56551834, 113103668, 141379585, 282759170, 565518340]

約数ペア:

[(1, 565518340), (2, 282759170), (4, 141379585), (5, 113103668), (10, 56551834), (20, 28275917), (79, 7158460), (158, 3579230), (316, 1789615), (359, 1575260), (395, 1431692), (718, 787630), (790, 715846), (997, 567220), (1436, 393815), (1580, 357923), (1795, 315052), (1994, 283610), (3590, 157526), (3988, 141805), (4985, 113444), (7180, 78763), (9970, 56722), (19940, 28361)]