81809744

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{8681}}^1$

素因数の和:8739

約数の個数: 40

約数和(自身を含む): 172250880

約数和(自身を除く): 90441136

約数列:

[1, 2, 4, 8, 16, 19, 31, 38, 62, 76, 124, 152, 248, 304, 496, 589, 1178, 2356, 4712, 8681, 9424, 17362, 34724, 69448, 138896, 164939, 269111, 329878, 538222, 659756, 1076444, 1319512, 2152888, 2639024, 4305776, 5113109, 10226218, 20452436, 40904872, 81809744]

約数ペア:

[(1, 81809744), (2, 40904872), (4, 20452436), (8, 10226218), (16, 5113109), (19, 4305776), (31, 2639024), (38, 2152888), (62, 1319512), (76, 1076444), (124, 659756), (152, 538222), (248, 329878), (304, 269111), (496, 164939), (589, 138896), (1178, 69448), (2356, 34724), (4712, 17362), (8681, 9424)]