71707905

素因数分解:

$3^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{79}}^1\times {\mathrm{877}}^1$

素因数の和:990

約数の個数: 48

約数和(自身を含む): 131489280

約数和(自身を除く): 59781375

約数列:

[1, 3, 5, 9, 15, 23, 45, 69, 79, 115, 207, 237, 345, 395, 711, 877, 1035, 1185, 1817, 2631, 3555, 4385, 5451, 7893, 9085, 13155, 16353, 20171, 27255, 39465, 60513, 69283, 81765, 100855, 181539, 207849, 302565, 346415, 623547, 907695, 1039245, 1593509, 3117735, 4780527, 7967545, 14341581, 23902635, 71707905]

約数ペア:

[(1, 71707905), (3, 23902635), (5, 14341581), (9, 7967545), (15, 4780527), (23, 3117735), (45, 1593509), (69, 1039245), (79, 907695), (115, 623547), (207, 346415), (237, 302565), (345, 207849), (395, 181539), (711, 100855), (877, 81765), (1035, 69283), (1185, 60513), (1817, 39465), (2631, 27255), (3555, 20171), (4385, 16353), (5451, 13155), (7893, 9085)]