28228900

素因数分解:

$2^2\times 5^2\times 7^3\times {\mathrm{823}}^1$

素因数の和:858

約数の個数: 72

約数和(自身を含む): 71523200

約数和(自身を除く): 43294300

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 25, 28, 35, 49, 50, 70, 98, 100, 140, 175, 196, 245, 343, 350, 490, 686, 700, 823, 980, 1225, 1372, 1646, 1715, 2450, 3292, 3430, 4115, 4900, 5761, 6860, 8230, 8575, 11522, 16460, 17150, 20575, 23044, 28805, 34300, 40327, 41150, 57610, 80654, 82300, 115220, 144025, 161308, 201635, 282289, 288050, 403270, 564578, 576100, 806540, 1008175, 1129156, 1411445, 2016350, 2822890, 4032700, 5645780, 7057225, 14114450, 28228900]

約数ペア:

[(1, 28228900), (2, 14114450), (4, 7057225), (5, 5645780), (7, 4032700), (10, 2822890), (14, 2016350), (20, 1411445), (25, 1129156), (28, 1008175), (35, 806540), (49, 576100), (50, 564578), (70, 403270), (98, 288050), (100, 282289), (140, 201635), (175, 161308), (196, 144025), (245, 115220), (343, 82300), (350, 80654), (490, 57610), (686, 41150), (700, 40327), (823, 34300), (980, 28805), (1225, 23044), (1372, 20575), (1646, 17150), (1715, 16460), (2450, 11522), (3292, 8575), (3430, 8230), (4115, 6860), (4900, 5761)]