20150015

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{37}}^1\times {\mathrm{43}}^1\times {\mathrm{149}}^1$

素因数の和:251

約数の個数: 32

約数和(自身を含む): 27086400

約数和(自身を除く): 6936385

約数列:

[1, 5, 17, 37, 43, 85, 149, 185, 215, 629, 731, 745, 1591, 2533, 3145, 3655, 5513, 6407, 7955, 12665, 27047, 27565, 32035, 93721, 108919, 135235, 237059, 468605, 544595, 1185295, 4030003, 20150015]

約数ペア:

[(1, 20150015), (5, 4030003), (17, 1185295), (37, 544595), (43, 468605), (85, 237059), (149, 135235), (185, 108919), (215, 93721), (629, 32035), (731, 27565), (745, 27047), (1591, 12665), (2533, 7955), (3145, 6407), (3655, 5513)]