81811944

素因数分解:

$2^3\times 3^4\times {\mathrm{251}}^1\times {\mathrm{503}}^1$

素因数の和:772

約数の個数: 80

約数和(自身を含む): 230519520

約数和(自身を除く): 148707576

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 27, 36, 54, 72, 81, 108, 162, 216, 251, 324, 502, 503, 648, 753, 1004, 1006, 1506, 1509, 2008, 2012, 2259, 3012, 3018, 4024, 4518, 4527, 6024, 6036, 6777, 9036, 9054, 12072, 13554, 13581, 18072, 18108, 20331, 27108, 27162, 36216, 40662, 40743, 54216, 54324, 81324, 81486, 108648, 126253, 162648, 162972, 252506, 325944, 378759, 505012, 757518, 1010024, 1136277, 1515036, 2272554, 3030072, 3408831, 4545108, 6817662, 9090216, 10226493, 13635324, 20452986, 27270648, 40905972, 81811944]

約数ペア:

[(1, 81811944), (2, 40905972), (3, 27270648), (4, 20452986), (6, 13635324), (8, 10226493), (9, 9090216), (12, 6817662), (18, 4545108), (24, 3408831), (27, 3030072), (36, 2272554), (54, 1515036), (72, 1136277), (81, 1010024), (108, 757518), (162, 505012), (216, 378759), (251, 325944), (324, 252506), (502, 162972), (503, 162648), (648, 126253), (753, 108648), (1004, 81486), (1006, 81324), (1506, 54324), (1509, 54216), (2008, 40743), (2012, 40662), (2259, 36216), (3012, 27162), (3018, 27108), (4024, 20331), (4518, 18108), (4527, 18072), (6024, 13581), (6036, 13554), (6777, 12072), (9036, 9054)]