1290228728

素因数分解:

$2^3\times {\mathrm{89}}^1\times {\mathrm{401}}^1\times {\mathrm{4519}}^1$

素因数の和:5015

約数の個数: 32

約数和(自身を含む): 2453004000

約数和(自身を除く): 1162775272

約数列:

[1, 2, 4, 8, 89, 178, 356, 401, 712, 802, 1604, 3208, 4519, 9038, 18076, 35689, 36152, 71378, 142756, 285512, 402191, 804382, 1608764, 1812119, 3217528, 3624238, 7248476, 14496952, 161278591, 322557182, 645114364, 1290228728]

約数ペア:

[(1, 1290228728), (2, 645114364), (4, 322557182), (8, 161278591), (89, 14496952), (178, 7248476), (356, 3624238), (401, 3217528), (712, 1812119), (802, 1608764), (1604, 804382), (3208, 402191), (4519, 285512), (9038, 142756), (18076, 71378), (35689, 36152)]