129403880

素因数分解:

$2^3\times 5^1\times {\mathrm{1361}}^1\times {\mathrm{2377}}^1$

素因数の和:3749

約数の個数: 32

約数和(自身を含む): 291495240

約数和(自身を除く): 162091360

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 1361, 2377, 2722, 4754, 5444, 6805, 9508, 10888, 11885, 13610, 19016, 23770, 27220, 47540, 54440, 95080, 3235097, 6470194, 12940388, 16175485, 25880776, 32350970, 64701940, 129403880]

約数ペア:

[(1, 129403880), (2, 64701940), (4, 32350970), (5, 25880776), (8, 16175485), (10, 12940388), (20, 6470194), (40, 3235097), (1361, 95080), (2377, 54440), (2722, 47540), (4754, 27220), (5444, 23770), (6805, 19016), (9508, 13610), (10888, 11885)]