128430275

素因数分解:

$5^2\times {\mathrm{23}}^1\times {\mathrm{401}}^1\times {\mathrm{557}}^1$

素因数の和:991

約数の個数: 24

約数和(自身を含む): 166891104

約数和(自身を除く): 38460829

約数列:

[1, 5, 23, 25, 115, 401, 557, 575, 2005, 2785, 9223, 10025, 12811, 13925, 46115, 64055, 223357, 230575, 320275, 1116785, 5137211, 5583925, 25686055, 128430275]

約数ペア:

[(1, 128430275), (5, 25686055), (23, 5583925), (25, 5137211), (115, 1116785), (401, 320275), (557, 230575), (575, 223357), (2005, 64055), (2785, 46115), (9223, 13925), (10025, 12811)]