261633684

素因数分解:

$2^2\times 3^1\times {\mathrm{13}}^1\times {\mathrm{499}}^1\times {\mathrm{3361}}^1$

素因数の和:3880

約数の個数: 48

約数和(自身を含む): 658952000

約数和(自身を除く): 397318316

約数列:

[1, 2, 3, 4, 6, 12, 13, 26, 39, 52, 78, 156, 499, 998, 1497, 1996, 2994, 3361, 5988, 6487, 6722, 10083, 12974, 13444, 19461, 20166, 25948, 38922, 40332, 43693, 77844, 87386, 131079, 174772, 262158, 524316, 1677139, 3354278, 5031417, 6708556, 10062834, 20125668, 21802807, 43605614, 65408421, 87211228, 130816842, 261633684]

約数ペア:

[(1, 261633684), (2, 130816842), (3, 87211228), (4, 65408421), (6, 43605614), (12, 21802807), (13, 20125668), (26, 10062834), (39, 6708556), (52, 5031417), (78, 3354278), (156, 1677139), (499, 524316), (998, 262158), (1497, 174772), (1996, 131079), (2994, 87386), (3361, 77844), (5988, 43693), (6487, 40332), (6722, 38922), (10083, 25948), (12974, 20166), (13444, 19461)]