20856032

素因数分解:

$2^5\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{659}}^1$

素因数の和:735

約数の個数: 48

約数和(自身を含む): 43908480

約数和(自身を除く): 23052448

約数列:

[1, 2, 4, 8, 16, 23, 32, 43, 46, 86, 92, 172, 184, 344, 368, 659, 688, 736, 989, 1318, 1376, 1978, 2636, 3956, 5272, 7912, 10544, 15157, 15824, 21088, 28337, 30314, 31648, 56674, 60628, 113348, 121256, 226696, 242512, 453392, 485024, 651751, 906784, 1303502, 2607004, 5214008, 10428016, 20856032]

約数ペア:

[(1, 20856032), (2, 10428016), (4, 5214008), (8, 2607004), (16, 1303502), (23, 906784), (32, 651751), (43, 485024), (46, 453392), (86, 242512), (92, 226696), (172, 121256), (184, 113348), (344, 60628), (368, 56674), (659, 31648), (688, 30314), (736, 28337), (989, 21088), (1318, 15824), (1376, 15157), (1978, 10544), (2636, 7912), (3956, 5272)]