81760900

素因数分解:

$2^2\times 5^2\times {\mathrm{13}}^1\times {\mathrm{109}}^1\times {\mathrm{577}}^1$

素因数の和:713

約数の個数: 72

約数和(自身を含む): 193156040

約数和(自身を除く): 111395140

約数列:

[1, 2, 4, 5, 10, 13, 20, 25, 26, 50, 52, 65, 100, 109, 130, 218, 260, 325, 436, 545, 577, 650, 1090, 1154, 1300, 1417, 2180, 2308, 2725, 2834, 2885, 5450, 5668, 5770, 7085, 7501, 10900, 11540, 14170, 14425, 15002, 28340, 28850, 30004, 35425, 37505, 57700, 62893, 70850, 75010, 125786, 141700, 150020, 187525, 251572, 314465, 375050, 628930, 750100, 817609, 1257860, 1572325, 1635218, 3144650, 3270436, 4088045, 6289300, 8176090, 16352180, 20440225, 40880450, 81760900]

約数ペア:

[(1, 81760900), (2, 40880450), (4, 20440225), (5, 16352180), (10, 8176090), (13, 6289300), (20, 4088045), (25, 3270436), (26, 3144650), (50, 1635218), (52, 1572325), (65, 1257860), (100, 817609), (109, 750100), (130, 628930), (218, 375050), (260, 314465), (325, 251572), (436, 187525), (545, 150020), (577, 141700), (650, 125786), (1090, 75010), (1154, 70850), (1300, 62893), (1417, 57700), (2180, 37505), (2308, 35425), (2725, 30004), (2834, 28850), (2885, 28340), (5450, 15002), (5668, 14425), (5770, 14170), (7085, 11540), (7501, 10900)]