25356820

素因数分解:

$2^2\times 5^1\times {\mathrm{67}}^1\times {\mathrm{127}}^1\times {\mathrm{149}}^1$

素因数の和:352

約数の個数: 48

約数和(自身を含む): 54835200

約数和(自身を除く): 29478380

約数列:

[1, 2, 4, 5, 10, 20, 67, 127, 134, 149, 254, 268, 298, 335, 508, 596, 635, 670, 745, 1270, 1340, 1490, 2540, 2980, 8509, 9983, 17018, 18923, 19966, 34036, 37846, 39932, 42545, 49915, 75692, 85090, 94615, 99830, 170180, 189230, 199660, 378460, 1267841, 2535682, 5071364, 6339205, 12678410, 25356820]

約数ペア:

[(1, 25356820), (2, 12678410), (4, 6339205), (5, 5071364), (10, 2535682), (20, 1267841), (67, 378460), (127, 199660), (134, 189230), (149, 170180), (254, 99830), (268, 94615), (298, 85090), (335, 75692), (508, 49915), (596, 42545), (635, 39932), (670, 37846), (745, 34036), (1270, 19966), (1340, 18923), (1490, 17018), (2540, 9983), (2980, 8509)]