8978340

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{21377}}^1$

素因数の和:21396

約数の個数: 48

約数和(自身を含む): 28732032

約数和(自身を除く): 19753692

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, 21377, 42754, 64131, 85508, 106885, 128262, 149639, 213770, 256524, 299278, 320655, 427540, 448917, 598556, 641310, 748195, 897834, 1282620, 1496390, 1795668, 2244585, 2992780, 4489170, 8978340]

約数ペア:

[(1, 8978340), (2, 4489170), (3, 2992780), (4, 2244585), (5, 1795668), (6, 1496390), (7, 1282620), (10, 897834), (12, 748195), (14, 641310), (15, 598556), (20, 448917), (21, 427540), (28, 320655), (30, 299278), (35, 256524), (42, 213770), (60, 149639), (70, 128262), (84, 106885), (105, 85508), (140, 64131), (210, 42754), (420, 21377)]