128410300

素因数分解:

$2^2\times 5^2\times {\mathrm{157}}^1\times {\mathrm{8179}}^1$

素因数の和:8350

約数の個数: 36

約数和(自身を含む): 280459480

約数和(自身を除く): 152049180

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 157, 314, 628, 785, 1570, 3140, 3925, 7850, 8179, 15700, 16358, 32716, 40895, 81790, 163580, 204475, 408950, 817900, 1284103, 2568206, 5136412, 6420515, 12841030, 25682060, 32102575, 64205150, 128410300]

約数ペア:

[(1, 128410300), (2, 64205150), (4, 32102575), (5, 25682060), (10, 12841030), (20, 6420515), (25, 5136412), (50, 2568206), (100, 1284103), (157, 817900), (314, 408950), (628, 204475), (785, 163580), (1570, 81790), (3140, 40895), (3925, 32716), (7850, 16358), (8179, 15700)]