20873504

素因数分解:

$2^5\times {\mathrm{29}}^1\times {\mathrm{83}}^1\times {\mathrm{271}}^1$

素因数の和:393

約数の個数: 48

約数和(自身を含む): 43182720

約数和(自身を除く): 22309216

約数列:

[1, 2, 4, 8, 16, 29, 32, 58, 83, 116, 166, 232, 271, 332, 464, 542, 664, 928, 1084, 1328, 2168, 2407, 2656, 4336, 4814, 7859, 8672, 9628, 15718, 19256, 22493, 31436, 38512, 44986, 62872, 77024, 89972, 125744, 179944, 251488, 359888, 652297, 719776, 1304594, 2609188, 5218376, 10436752, 20873504]

約数ペア:

[(1, 20873504), (2, 10436752), (4, 5218376), (8, 2609188), (16, 1304594), (29, 719776), (32, 652297), (58, 359888), (83, 251488), (116, 179944), (166, 125744), (232, 89972), (271, 77024), (332, 62872), (464, 44986), (542, 38512), (664, 31436), (928, 22493), (1084, 19256), (1328, 15718), (2168, 9628), (2407, 8672), (2656, 7859), (4336, 4814)]