18719744

素因数分解:

$2^{10}\times {\mathrm{101}}^1\times {\mathrm{181}}^1$

素因数の和:302

約数の個数: 44

約数和(自身を含む): 38000508

約数和(自身を除く): 19280764

約数列:

[1, 2, 4, 8, 16, 32, 64, 101, 128, 181, 202, 256, 362, 404, 512, 724, 808, 1024, 1448, 1616, 2896, 3232, 5792, 6464, 11584, 12928, 18281, 23168, 25856, 36562, 46336, 51712, 73124, 92672, 103424, 146248, 185344, 292496, 584992, 1169984, 2339968, 4679936, 9359872, 18719744]

約数ペア:

[(1, 18719744), (2, 9359872), (4, 4679936), (8, 2339968), (16, 1169984), (32, 584992), (64, 292496), (101, 185344), (128, 146248), (181, 103424), (202, 92672), (256, 73124), (362, 51712), (404, 46336), (512, 36562), (724, 25856), (808, 23168), (1024, 18281), (1448, 12928), (1616, 11584), (2896, 6464), (3232, 5792)]