25145428

素因数分解:

$2^2\times 7^2\times {\mathrm{11}}^1\times {\mathrm{107}}^1\times {\mathrm{109}}^1$

素因数の和:245

約数の個数: 72

約数和(自身を含む): 56881440

約数和(自身を除く): 31736012

約数列:

[1, 2, 4, 7, 11, 14, 22, 28, 44, 49, 77, 98, 107, 109, 154, 196, 214, 218, 308, 428, 436, 539, 749, 763, 1078, 1177, 1199, 1498, 1526, 2156, 2354, 2398, 2996, 3052, 4708, 4796, 5243, 5341, 8239, 8393, 10486, 10682, 11663, 16478, 16786, 20972, 21364, 23326, 32956, 33572, 46652, 57673, 58751, 81641, 115346, 117502, 128293, 163282, 230692, 235004, 256586, 326564, 513172, 571487, 898051, 1142974, 1796102, 2285948, 3592204, 6286357, 12572714, 25145428]

約数ペア:

[(1, 25145428), (2, 12572714), (4, 6286357), (7, 3592204), (11, 2285948), (14, 1796102), (22, 1142974), (28, 898051), (44, 571487), (49, 513172), (77, 326564), (98, 256586), (107, 235004), (109, 230692), (154, 163282), (196, 128293), (214, 117502), (218, 115346), (308, 81641), (428, 58751), (436, 57673), (539, 46652), (749, 33572), (763, 32956), (1078, 23326), (1177, 21364), (1199, 20972), (1498, 16786), (1526, 16478), (2156, 11663), (2354, 10682), (2398, 10486), (2996, 8393), (3052, 8239), (4708, 5341), (4796, 5243)]