20719456

素因数分解:

$2^5\times {\mathrm{29}}^1\times {\mathrm{83}}^1\times {\mathrm{269}}^1$

素因数の和:391

約数の個数: 48

約数和(自身を含む): 42865200

約数和(自身を除く): 22145744

約数列:

[1, 2, 4, 8, 16, 29, 32, 58, 83, 116, 166, 232, 269, 332, 464, 538, 664, 928, 1076, 1328, 2152, 2407, 2656, 4304, 4814, 7801, 8608, 9628, 15602, 19256, 22327, 31204, 38512, 44654, 62408, 77024, 89308, 124816, 178616, 249632, 357232, 647483, 714464, 1294966, 2589932, 5179864, 10359728, 20719456]

約数ペア:

[(1, 20719456), (2, 10359728), (4, 5179864), (8, 2589932), (16, 1294966), (29, 714464), (32, 647483), (58, 357232), (83, 249632), (116, 178616), (166, 124816), (232, 89308), (269, 77024), (332, 62408), (464, 44654), (538, 38512), (664, 31204), (928, 22327), (1076, 19256), (1328, 15602), (2152, 9628), (2407, 8608), (2656, 7801), (4304, 4814)]