2222740

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{83}}^1\times {\mathrm{103}}^1$

素因数の和:208

約数の個数: 48

約数和(自身を含む): 5136768

約数和(自身を除く): 2914028

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 83, 103, 130, 166, 206, 260, 332, 412, 415, 515, 830, 1030, 1079, 1339, 1660, 2060, 2158, 2678, 4316, 5356, 5395, 6695, 8549, 10790, 13390, 17098, 21580, 26780, 34196, 42745, 85490, 111137, 170980, 222274, 444548, 555685, 1111370, 2222740]

約数ペア:

[(1, 2222740), (2, 1111370), (4, 555685), (5, 444548), (10, 222274), (13, 170980), (20, 111137), (26, 85490), (52, 42745), (65, 34196), (83, 26780), (103, 21580), (130, 17098), (166, 13390), (206, 10790), (260, 8549), (332, 6695), (412, 5395), (415, 5356), (515, 4316), (830, 2678), (1030, 2158), (1079, 2060), (1339, 1660)]