81247140

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{34721}}^1$

素因数の和:34749

約数の個数: 72

約数和(自身を含む): 265414968

約数和(自身を除く): 184167828

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 13, 15, 18, 20, 26, 30, 36, 39, 45, 52, 60, 65, 78, 90, 117, 130, 156, 180, 195, 234, 260, 390, 468, 585, 780, 1170, 2340, 34721, 69442, 104163, 138884, 173605, 208326, 312489, 347210, 416652, 451373, 520815, 624978, 694420, 902746, 1041630, 1249956, 1354119, 1562445, 1805492, 2083260, 2256865, 2708238, 3124890, 4062357, 4513730, 5416476, 6249780, 6770595, 8124714, 9027460, 13541190, 16249428, 20311785, 27082380, 40623570, 81247140]

約数ペア:

[(1, 81247140), (2, 40623570), (3, 27082380), (4, 20311785), (5, 16249428), (6, 13541190), (9, 9027460), (10, 8124714), (12, 6770595), (13, 6249780), (15, 5416476), (18, 4513730), (20, 4062357), (26, 3124890), (30, 2708238), (36, 2256865), (39, 2083260), (45, 1805492), (52, 1562445), (60, 1354119), (65, 1249956), (78, 1041630), (90, 902746), (117, 694420), (130, 624978), (156, 520815), (180, 451373), (195, 416652), (234, 347210), (260, 312489), (390, 208326), (468, 173605), (585, 138884), (780, 104163), (1170, 69442), (2340, 34721)]