398889424

素因数分解:

$2^4\times {\mathrm{109}}^1\times {\mathrm{331}}^1\times {\mathrm{691}}^1$

素因数の和:1139

約数の個数: 40

約数和(自身を含む): 783427040

約数和(自身を除く): 384537616

約数列:

[1, 2, 4, 8, 16, 109, 218, 331, 436, 662, 691, 872, 1324, 1382, 1744, 2648, 2764, 5296, 5528, 11056, 36079, 72158, 75319, 144316, 150638, 228721, 288632, 301276, 457442, 577264, 602552, 914884, 1205104, 1829768, 3659536, 24930589, 49861178, 99722356, 199444712, 398889424]

約数ペア:

[(1, 398889424), (2, 199444712), (4, 99722356), (8, 49861178), (16, 24930589), (109, 3659536), (218, 1829768), (331, 1205104), (436, 914884), (662, 602552), (691, 577264), (872, 457442), (1324, 301276), (1382, 288632), (1744, 228721), (2648, 150638), (2764, 144316), (5296, 75319), (5528, 72158), (11056, 36079)]