399408

素因数分解:

$2^4\times 3^1\times {\mathrm{53}}^1\times {\mathrm{157}}^1$

素因数の和:221

約数の個数: 40

約数和(自身を含む): 1057968

約数和(自身を除く): 658560

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 24, 48, 53, 106, 157, 159, 212, 314, 318, 424, 471, 628, 636, 848, 942, 1256, 1272, 1884, 2512, 2544, 3768, 7536, 8321, 16642, 24963, 33284, 49926, 66568, 99852, 133136, 199704, 399408]

約数ペア:

[(1, 399408), (2, 199704), (3, 133136), (4, 99852), (6, 66568), (8, 49926), (12, 33284), (16, 24963), (24, 16642), (48, 8321), (53, 7536), (106, 3768), (157, 2544), (159, 2512), (212, 1884), (314, 1272), (318, 1256), (424, 942), (471, 848), (628, 636)]