312681520

素因数分解:

$2^4\times 5^1\times {\mathrm{1871}}^1\times {\mathrm{2089}}^1$

素因数の和:3973

約数の個数: 40

約数和(自身を含む): 727721280

約数和(自身を除く): 415039760

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 1871, 2089, 3742, 4178, 7484, 8356, 9355, 10445, 14968, 16712, 18710, 20890, 29936, 33424, 37420, 41780, 74840, 83560, 149680, 167120, 3908519, 7817038, 15634076, 19542595, 31268152, 39085190, 62536304, 78170380, 156340760, 312681520]

約数ペア:

[(1, 312681520), (2, 156340760), (4, 78170380), (5, 62536304), (8, 39085190), (10, 31268152), (16, 19542595), (20, 15634076), (40, 7817038), (80, 3908519), (1871, 167120), (2089, 149680), (3742, 83560), (4178, 74840), (7484, 41780), (8356, 37420), (9355, 33424), (10445, 29936), (14968, 20890), (16712, 18710)]