20383136

素因数分解:

$2^5\times {\mathrm{17}}^1\times {\mathrm{89}}^1\times {\mathrm{421}}^1$

素因数の和:537

約数の個数: 48

約数和(自身を含む): 43069320

約数和(自身を除く): 22686184

約数列:

[1, 2, 4, 8, 16, 17, 32, 34, 68, 89, 136, 178, 272, 356, 421, 544, 712, 842, 1424, 1513, 1684, 2848, 3026, 3368, 6052, 6736, 7157, 12104, 13472, 14314, 24208, 28628, 37469, 48416, 57256, 74938, 114512, 149876, 229024, 299752, 599504, 636973, 1199008, 1273946, 2547892, 5095784, 10191568, 20383136]

約数ペア:

[(1, 20383136), (2, 10191568), (4, 5095784), (8, 2547892), (16, 1273946), (17, 1199008), (32, 636973), (34, 599504), (68, 299752), (89, 229024), (136, 149876), (178, 114512), (272, 74938), (356, 57256), (421, 48416), (544, 37469), (712, 28628), (842, 24208), (1424, 14314), (1513, 13472), (1684, 12104), (2848, 7157), (3026, 6736), (3368, 6052)]