156988280

素因数分解:

$2^3\times 5^1\times {\mathrm{313}}^1\times {\mathrm{12539}}^1$

素因数の和:12863

約数の個数: 32

約数和(自身を含む): 354380400

約数和(自身を除く): 197392120

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 313, 626, 1252, 1565, 2504, 3130, 6260, 12520, 12539, 25078, 50156, 62695, 100312, 125390, 250780, 501560, 3924707, 7849414, 15698828, 19623535, 31397656, 39247070, 78494140, 156988280]

約数ペア:

[(1, 156988280), (2, 78494140), (4, 39247070), (5, 31397656), (8, 19623535), (10, 15698828), (20, 7849414), (40, 3924707), (313, 501560), (626, 250780), (1252, 125390), (1565, 100312), (2504, 62695), (3130, 50156), (6260, 25078), (12520, 12539)]