149999408

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{661}}^1\times {\mathrm{1091}}^1$

素因数の和:1773

約数の個数: 40

約数和(自身を含む): 313740336

約数和(自身を除く): 163740928

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 661, 1091, 1322, 2182, 2644, 4364, 5288, 8593, 8728, 10576, 14183, 17186, 17456, 28366, 34372, 56732, 68744, 113464, 137488, 226928, 721151, 1442302, 2884604, 5769208, 9374963, 11538416, 18749926, 37499852, 74999704, 149999408]

約数ペア:

[(1, 149999408), (2, 74999704), (4, 37499852), (8, 18749926), (13, 11538416), (16, 9374963), (26, 5769208), (52, 2884604), (104, 1442302), (208, 721151), (661, 226928), (1091, 137488), (1322, 113464), (2182, 68744), (2644, 56732), (4364, 34372), (5288, 28366), (8593, 17456), (8728, 17186), (10576, 14183)]