19200350

素因数分解:

$2^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{109}}^1\times {\mathrm{271}}^1$

素因数の和:405

約数の個数: 48

約数和(自身を含む): 38955840

約数和(自身を除く): 19755490

約数列:

[1, 2, 5, 10, 13, 25, 26, 50, 65, 109, 130, 218, 271, 325, 542, 545, 650, 1090, 1355, 1417, 2710, 2725, 2834, 3523, 5450, 6775, 7046, 7085, 13550, 14170, 17615, 29539, 35230, 35425, 59078, 70850, 88075, 147695, 176150, 295390, 384007, 738475, 768014, 1476950, 1920035, 3840070, 9600175, 19200350]

約数ペア:

[(1, 19200350), (2, 9600175), (5, 3840070), (10, 1920035), (13, 1476950), (25, 768014), (26, 738475), (50, 384007), (65, 295390), (109, 176150), (130, 147695), (218, 88075), (271, 70850), (325, 59078), (542, 35425), (545, 35230), (650, 29539), (1090, 17615), (1355, 14170), (1417, 13550), (2710, 7085), (2725, 7046), (2834, 6775), (3523, 5450)]