28507180

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{83}}^1\times {\mathrm{1321}}^1$

素因数の和:1426

約数の個数: 48

約数和(自身を含む): 65296224

約数和(自身を除く): 36789044

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 83, 130, 166, 260, 332, 415, 830, 1079, 1321, 1660, 2158, 2642, 4316, 5284, 5395, 6605, 10790, 13210, 17173, 21580, 26420, 34346, 68692, 85865, 109643, 171730, 219286, 343460, 438572, 548215, 1096430, 1425359, 2192860, 2850718, 5701436, 7126795, 14253590, 28507180]

約数ペア:

[(1, 28507180), (2, 14253590), (4, 7126795), (5, 5701436), (10, 2850718), (13, 2192860), (20, 1425359), (26, 1096430), (52, 548215), (65, 438572), (83, 343460), (130, 219286), (166, 171730), (260, 109643), (332, 85865), (415, 68692), (830, 34346), (1079, 26420), (1321, 21580), (1660, 17173), (2158, 13210), (2642, 10790), (4316, 6605), (5284, 5395)]