213219760

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{205019}}^1$

素因数の和:205045

約数の個数: 40

約数和(自身を含む): 533872080

約数和(自身を除く): 320652320

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 208, 260, 520, 1040, 205019, 410038, 820076, 1025095, 1640152, 2050190, 2665247, 3280304, 4100380, 5330494, 8200760, 10660988, 13326235, 16401520, 21321976, 26652470, 42643952, 53304940, 106609880, 213219760]

約数ペア:

[(1, 213219760), (2, 106609880), (4, 53304940), (5, 42643952), (8, 26652470), (10, 21321976), (13, 16401520), (16, 13326235), (20, 10660988), (26, 8200760), (40, 5330494), (52, 4100380), (65, 3280304), (80, 2665247), (104, 2050190), (130, 1640152), (208, 1025095), (260, 820076), (520, 410038), (1040, 205019)]