20227688

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{17}}^2\times {\mathrm{673}}^1$

素因数の和:726

約数の個数: 48

約数和(自身を含む): 43452780

約数和(自身を除く): 23225092

約数列:

[1, 2, 4, 8, 13, 17, 26, 34, 52, 68, 104, 136, 221, 289, 442, 578, 673, 884, 1156, 1346, 1768, 2312, 2692, 3757, 5384, 7514, 8749, 11441, 15028, 17498, 22882, 30056, 34996, 45764, 69992, 91528, 148733, 194497, 297466, 388994, 594932, 777988, 1189864, 1555976, 2528461, 5056922, 10113844, 20227688]

約数ペア:

[(1, 20227688), (2, 10113844), (4, 5056922), (8, 2528461), (13, 1555976), (17, 1189864), (26, 777988), (34, 594932), (52, 388994), (68, 297466), (104, 194497), (136, 148733), (221, 91528), (289, 69992), (442, 45764), (578, 34996), (673, 30056), (884, 22882), (1156, 17498), (1346, 15028), (1768, 11441), (2312, 8749), (2692, 7514), (3757, 5384)]