4081980

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{9719}}^1$

素因数の和:9738

約数の個数: 48

約数和(自身を含む): 13063680

約数和(自身を除く): 8981700

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 210, 420, 9719, 19438, 29157, 38876, 48595, 58314, 68033, 97190, 116628, 136066, 145785, 194380, 204099, 272132, 291570, 340165, 408198, 583140, 680330, 816396, 1020495, 1360660, 2040990, 4081980]

約数ペア:

[(1, 4081980), (2, 2040990), (3, 1360660), (4, 1020495), (5, 816396), (6, 680330), (7, 583140), (10, 408198), (12, 340165), (14, 291570), (15, 272132), (20, 204099), (21, 194380), (28, 145785), (30, 136066), (35, 116628), (42, 97190), (60, 68033), (70, 58314), (84, 48595), (105, 38876), (140, 29157), (210, 19438), (420, 9719)]