64141980

素因数分解:

$2^2\times 3^1\times 5^1\times 7^2\times {\mathrm{21817}}^1$

素因数の和:21843

約数の個数: 72

約数和(自身を含む): 208929168

約数和(自身を除く): 144787188

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 49, 60, 70, 84, 98, 105, 140, 147, 196, 210, 245, 294, 420, 490, 588, 735, 980, 1470, 2940, 21817, 43634, 65451, 87268, 109085, 130902, 152719, 218170, 261804, 305438, 327255, 436340, 458157, 610876, 654510, 763595, 916314, 1069033, 1309020, 1527190, 1832628, 2138066, 2290785, 3054380, 3207099, 4276132, 4581570, 5345165, 6414198, 9163140, 10690330, 12828396, 16035495, 21380660, 32070990, 64141980]

約数ペア:

[(1, 64141980), (2, 32070990), (3, 21380660), (4, 16035495), (5, 12828396), (6, 10690330), (7, 9163140), (10, 6414198), (12, 5345165), (14, 4581570), (15, 4276132), (20, 3207099), (21, 3054380), (28, 2290785), (30, 2138066), (35, 1832628), (42, 1527190), (49, 1309020), (60, 1069033), (70, 916314), (84, 763595), (98, 654510), (105, 610876), (140, 458157), (147, 436340), (196, 327255), (210, 305438), (245, 261804), (294, 218170), (420, 152719), (490, 130902), (588, 109085), (735, 87268), (980, 65451), (1470, 43634), (2940, 21817)]