81138330

素因数分解:

$2^1\times 3^2\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{9907}}^1$

素因数の和:9940

約数の個数: 96

約数和(自身を含む): 259668864

約数和(自身を除く): 178530534

約数列:

[1, 2, 3, 5, 6, 7, 9, 10, 13, 14, 15, 18, 21, 26, 30, 35, 39, 42, 45, 63, 65, 70, 78, 90, 91, 105, 117, 126, 130, 182, 195, 210, 234, 273, 315, 390, 455, 546, 585, 630, 819, 910, 1170, 1365, 1638, 2730, 4095, 8190, 9907, 19814, 29721, 49535, 59442, 69349, 89163, 99070, 128791, 138698, 148605, 178326, 208047, 257582, 297210, 346745, 386373, 416094, 445815, 624141, 643955, 693490, 772746, 891630, 901537, 1040235, 1159119, 1248282, 1287910, 1803074, 1931865, 2080470, 2318238, 2704611, 3120705, 3863730, 4507685, 5409222, 5795595, 6241410, 8113833, 9015370, 11591190, 13523055, 16227666, 27046110, 40569165, 81138330]

約数ペア:

[(1, 81138330), (2, 40569165), (3, 27046110), (5, 16227666), (6, 13523055), (7, 11591190), (9, 9015370), (10, 8113833), (13, 6241410), (14, 5795595), (15, 5409222), (18, 4507685), (21, 3863730), (26, 3120705), (30, 2704611), (35, 2318238), (39, 2080470), (42, 1931865), (45, 1803074), (63, 1287910), (65, 1248282), (70, 1159119), (78, 1040235), (90, 901537), (91, 891630), (105, 772746), (117, 693490), (126, 643955), (130, 624141), (182, 445815), (195, 416094), (210, 386373), (234, 346745), (273, 297210), (315, 257582), (390, 208047), (455, 178326), (546, 148605), (585, 138698), (630, 128791), (819, 99070), (910, 89163), (1170, 69349), (1365, 59442), (1638, 49535), (2730, 29721), (4095, 19814), (8190, 9907)]