80203815

素因数分解:

$3^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{181}}^1\times {\mathrm{229}}^1$

素因数の和:464

約数の個数: 48

約数和(自身を含む): 143663520

約数和(自身を除く): 63459705

約数列:

[1, 3, 5, 9, 15, 43, 45, 129, 181, 215, 229, 387, 543, 645, 687, 905, 1145, 1629, 1935, 2061, 2715, 3435, 7783, 8145, 9847, 10305, 23349, 29541, 38915, 41449, 49235, 70047, 88623, 116745, 124347, 147705, 207245, 350235, 373041, 443115, 621735, 1782307, 1865205, 5346921, 8911535, 16040763, 26734605, 80203815]

約数ペア:

[(1, 80203815), (3, 26734605), (5, 16040763), (9, 8911535), (15, 5346921), (43, 1865205), (45, 1782307), (129, 621735), (181, 443115), (215, 373041), (229, 350235), (387, 207245), (543, 147705), (645, 124347), (687, 116745), (905, 88623), (1145, 70047), (1629, 49235), (1935, 41449), (2061, 38915), (2715, 29541), (3435, 23349), (7783, 10305), (8145, 9847)]