1278187128

素因数分解:

$2^3\times 3^4\times {\mathrm{1972511}}^1$

素因数の和:1972529

約数の個数: 40

約数和(自身を含む): 3580109280

約数和(自身を除く): 2301922152

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 27, 36, 54, 72, 81, 108, 162, 216, 324, 648, 1972511, 3945022, 5917533, 7890044, 11835066, 15780088, 17752599, 23670132, 35505198, 47340264, 53257797, 71010396, 106515594, 142020792, 159773391, 213031188, 319546782, 426062376, 639093564, 1278187128]

約数ペア:

[(1, 1278187128), (2, 639093564), (3, 426062376), (4, 319546782), (6, 213031188), (8, 159773391), (9, 142020792), (12, 106515594), (18, 71010396), (24, 53257797), (27, 47340264), (36, 35505198), (54, 23670132), (72, 17752599), (81, 15780088), (108, 11835066), (162, 7890044), (216, 5917533), (324, 3945022), (648, 1972511)]