156721195

素因数分解:

$5^1\times {\mathrm{23}}^1\times {\mathrm{101}}^1\times {\mathrm{103}}^1\times {\mathrm{131}}^1$

素因数の和:363

約数の個数: 32

約数和(自身を含む): 201636864

約数和(自身を除く): 44915669

約数列:

[1, 5, 23, 101, 103, 115, 131, 505, 515, 655, 2323, 2369, 3013, 10403, 11615, 11845, 13231, 13493, 15065, 52015, 66155, 67465, 239269, 304313, 310339, 1196345, 1362793, 1521565, 1551695, 6813965, 31344239, 156721195]

約数ペア:

[(1, 156721195), (5, 31344239), (23, 6813965), (101, 1551695), (103, 1521565), (115, 1362793), (131, 1196345), (505, 310339), (515, 304313), (655, 239269), (2323, 67465), (2369, 66155), (3013, 52015), (10403, 15065), (11615, 13493), (11845, 13231)]