28159740

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{22349}}^1$

素因数の和:22371

約数の個数: 72

約数和(自身を含む): 97624800

約数和(自身を除く): 69465060

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 28, 30, 35, 36, 42, 45, 60, 63, 70, 84, 90, 105, 126, 140, 180, 210, 252, 315, 420, 630, 1260, 22349, 44698, 67047, 89396, 111745, 134094, 156443, 201141, 223490, 268188, 312886, 335235, 402282, 446980, 469329, 625772, 670470, 782215, 804564, 938658, 1005705, 1340940, 1407987, 1564430, 1877316, 2011410, 2346645, 2815974, 3128860, 4022820, 4693290, 5631948, 7039935, 9386580, 14079870, 28159740]

約数ペア:

[(1, 28159740), (2, 14079870), (3, 9386580), (4, 7039935), (5, 5631948), (6, 4693290), (7, 4022820), (9, 3128860), (10, 2815974), (12, 2346645), (14, 2011410), (15, 1877316), (18, 1564430), (20, 1407987), (21, 1340940), (28, 1005705), (30, 938658), (35, 804564), (36, 782215), (42, 670470), (45, 625772), (60, 469329), (63, 446980), (70, 402282), (84, 335235), (90, 312886), (105, 268188), (126, 223490), (140, 201141), (180, 156443), (210, 134094), (252, 111745), (315, 89396), (420, 67047), (630, 44698), (1260, 22349)]