20757152

素因数分解:

$2^5\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{1217}}^1$

素因数の和:1281

約数の個数: 48

約数和(自身を含む): 45119592

約数和(自身を除く): 24362440

約数列:

[1, 2, 4, 8, 13, 16, 26, 32, 41, 52, 82, 104, 164, 208, 328, 416, 533, 656, 1066, 1217, 1312, 2132, 2434, 4264, 4868, 8528, 9736, 15821, 17056, 19472, 31642, 38944, 49897, 63284, 99794, 126568, 199588, 253136, 399176, 506272, 648661, 798352, 1297322, 1596704, 2594644, 5189288, 10378576, 20757152]

約数ペア:

[(1, 20757152), (2, 10378576), (4, 5189288), (8, 2594644), (13, 1596704), (16, 1297322), (26, 798352), (32, 648661), (41, 506272), (52, 399176), (82, 253136), (104, 199588), (164, 126568), (208, 99794), (328, 63284), (416, 49897), (533, 38944), (656, 31642), (1066, 19472), (1217, 17056), (1312, 15821), (2132, 9736), (2434, 8528), (4264, 4868)]