20682272

素因数分解:

$2^5\times {\mathrm{13}}^1\times {\mathrm{83}}^1\times {\mathrm{599}}^1$

素因数の和:705

約数の個数: 48

約数和(自身を含む): 44452800

約数和(自身を除く): 23770528

約数列:

[1, 2, 4, 8, 13, 16, 26, 32, 52, 83, 104, 166, 208, 332, 416, 599, 664, 1079, 1198, 1328, 2158, 2396, 2656, 4316, 4792, 7787, 8632, 9584, 15574, 17264, 19168, 31148, 34528, 49717, 62296, 99434, 124592, 198868, 249184, 397736, 646321, 795472, 1292642, 1590944, 2585284, 5170568, 10341136, 20682272]

約数ペア:

[(1, 20682272), (2, 10341136), (4, 5170568), (8, 2585284), (13, 1590944), (16, 1292642), (26, 795472), (32, 646321), (52, 397736), (83, 249184), (104, 198868), (166, 124592), (208, 99434), (332, 62296), (416, 49717), (599, 34528), (664, 31148), (1079, 19168), (1198, 17264), (1328, 15574), (2158, 9584), (2396, 8632), (2656, 7787), (4316, 4792)]