1901985

素因数分解:

$3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{37}}^1\times {\mathrm{149}}^1$

素因数の和:217

約数の個数: 32

約数和(自身を含む): 3283200

約数和(自身を除く): 1381215

約数列:

[1, 3, 5, 15, 23, 37, 69, 111, 115, 149, 185, 345, 447, 555, 745, 851, 2235, 2553, 3427, 4255, 5513, 10281, 12765, 16539, 17135, 27565, 51405, 82695, 126799, 380397, 633995, 1901985]

約数ペア:

[(1, 1901985), (3, 633995), (5, 380397), (15, 126799), (23, 82695), (37, 51405), (69, 27565), (111, 17135), (115, 16539), (149, 12765), (185, 10281), (345, 5513), (447, 4255), (555, 3427), (745, 2553), (851, 2235)]