4122820

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{101}}^1\times {\mathrm{157}}^1$

素因数の和:280

約数の個数: 48

約数和(自身を含む): 9476208

約数和(自身を除く): 5353388

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 101, 130, 157, 202, 260, 314, 404, 505, 628, 785, 1010, 1313, 1570, 2020, 2041, 2626, 3140, 4082, 5252, 6565, 8164, 10205, 13130, 15857, 20410, 26260, 31714, 40820, 63428, 79285, 158570, 206141, 317140, 412282, 824564, 1030705, 2061410, 4122820]

約数ペア:

[(1, 4122820), (2, 2061410), (4, 1030705), (5, 824564), (10, 412282), (13, 317140), (20, 206141), (26, 158570), (52, 79285), (65, 63428), (101, 40820), (130, 31714), (157, 26260), (202, 20410), (260, 15857), (314, 13130), (404, 10205), (505, 8164), (628, 6565), (785, 5252), (1010, 4082), (1313, 3140), (1570, 2626), (2020, 2041)]