81609390

素因数分解:

$2^1\times 3^3\times 5^1\times {\mathrm{47}}^1\times {\mathrm{59}}^1\times {\mathrm{109}}^1$

素因数の和:231

約数の個数: 128

約数和(自身を含む): 228096000

約数和(自身を除く): 146486610

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 27, 30, 45, 47, 54, 59, 90, 94, 109, 118, 135, 141, 177, 218, 235, 270, 282, 295, 327, 354, 423, 470, 531, 545, 590, 654, 705, 846, 885, 981, 1062, 1090, 1269, 1410, 1593, 1635, 1770, 1962, 2115, 2538, 2655, 2773, 2943, 3186, 3270, 4230, 4905, 5123, 5310, 5546, 5886, 6345, 6431, 7965, 8319, 9810, 10246, 12690, 12862, 13865, 14715, 15369, 15930, 16638, 19293, 24957, 25615, 27730, 29430, 30738, 32155, 38586, 41595, 46107, 49914, 51230, 57879, 64310, 74871, 76845, 83190, 92214, 96465, 115758, 124785, 138321, 149742, 153690, 173637, 192930, 230535, 249570, 276642, 289395, 302257, 347274, 374355, 461070, 578790, 604514, 691605, 748710, 868185, 906771, 1383210, 1511285, 1736370, 1813542, 2720313, 3022570, 4533855, 5440626, 8160939, 9067710, 13601565, 16321878, 27203130, 40804695, 81609390]

約数ペア:

[(1, 81609390), (2, 40804695), (3, 27203130), (5, 16321878), (6, 13601565), (9, 9067710), (10, 8160939), (15, 5440626), (18, 4533855), (27, 3022570), (30, 2720313), (45, 1813542), (47, 1736370), (54, 1511285), (59, 1383210), (90, 906771), (94, 868185), (109, 748710), (118, 691605), (135, 604514), (141, 578790), (177, 461070), (218, 374355), (235, 347274), (270, 302257), (282, 289395), (295, 276642), (327, 249570), (354, 230535), (423, 192930), (470, 173637), (531, 153690), (545, 149742), (590, 138321), (654, 124785), (705, 115758), (846, 96465), (885, 92214), (981, 83190), (1062, 76845), (1090, 74871), (1269, 64310), (1410, 57879), (1593, 51230), (1635, 49914), (1770, 46107), (1962, 41595), (2115, 38586), (2538, 32155), (2655, 30738), (2773, 29430), (2943, 27730), (3186, 25615), (3270, 24957), (4230, 19293), (4905, 16638), (5123, 15930), (5310, 15369), (5546, 14715), (5886, 13865), (6345, 12862), (6431, 12690), (7965, 10246), (8319, 9810)]