17719580

素因数分解:

$2^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{137}}^1\times {\mathrm{223}}^1$

素因数の和:398

約数の個数: 48

約数和(自身を含む): 38949120

約数和(自身を除く): 21229540

約数列:

[1, 2, 4, 5, 10, 20, 29, 58, 116, 137, 145, 223, 274, 290, 446, 548, 580, 685, 892, 1115, 1370, 2230, 2740, 3973, 4460, 6467, 7946, 12934, 15892, 19865, 25868, 30551, 32335, 39730, 61102, 64670, 79460, 122204, 129340, 152755, 305510, 611020, 885979, 1771958, 3543916, 4429895, 8859790, 17719580]

約数ペア:

[(1, 17719580), (2, 8859790), (4, 4429895), (5, 3543916), (10, 1771958), (20, 885979), (29, 611020), (58, 305510), (116, 152755), (137, 129340), (145, 122204), (223, 79460), (274, 64670), (290, 61102), (446, 39730), (548, 32335), (580, 30551), (685, 25868), (892, 19865), (1115, 15892), (1370, 12934), (2230, 7946), (2740, 6467), (3973, 4460)]