20122144

素因数分解:

$2^5\times 7^2\times {\mathrm{41}}^1\times {\mathrm{313}}^1$

素因数の和:378

約数の個数: 72

約数和(自身を含む): 47358108

約数和(自身を除く): 27235964

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 41, 49, 56, 82, 98, 112, 164, 196, 224, 287, 313, 328, 392, 574, 626, 656, 784, 1148, 1252, 1312, 1568, 2009, 2191, 2296, 2504, 4018, 4382, 4592, 5008, 8036, 8764, 9184, 10016, 12833, 15337, 16072, 17528, 25666, 30674, 32144, 35056, 51332, 61348, 64288, 70112, 89831, 102664, 122696, 179662, 205328, 245392, 359324, 410656, 490784, 628817, 718648, 1257634, 1437296, 2515268, 2874592, 5030536, 10061072, 20122144]

約数ペア:

[(1, 20122144), (2, 10061072), (4, 5030536), (7, 2874592), (8, 2515268), (14, 1437296), (16, 1257634), (28, 718648), (32, 628817), (41, 490784), (49, 410656), (56, 359324), (82, 245392), (98, 205328), (112, 179662), (164, 122696), (196, 102664), (224, 89831), (287, 70112), (313, 64288), (328, 61348), (392, 51332), (574, 35056), (626, 32144), (656, 30674), (784, 25666), (1148, 17528), (1252, 16072), (1312, 15337), (1568, 12833), (2009, 10016), (2191, 9184), (2296, 8764), (2504, 8036), (4018, 5008), (4382, 4592)]