81451260

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{1327}}^1$

素因数の和:1384

約数の個数: 144

約数和(自身を含む): 278433792

約数和(自身を除く): 196982532

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 11, 12, 15, 18, 20, 22, 30, 31, 33, 36, 44, 45, 55, 60, 62, 66, 90, 93, 99, 110, 124, 132, 155, 165, 180, 186, 198, 220, 279, 310, 330, 341, 372, 396, 465, 495, 558, 620, 660, 682, 930, 990, 1023, 1116, 1327, 1364, 1395, 1705, 1860, 1980, 2046, 2654, 2790, 3069, 3410, 3981, 4092, 5115, 5308, 5580, 6138, 6635, 6820, 7962, 10230, 11943, 12276, 13270, 14597, 15345, 15924, 19905, 20460, 23886, 26540, 29194, 30690, 39810, 41137, 43791, 47772, 58388, 59715, 61380, 72985, 79620, 82274, 87582, 119430, 123411, 131373, 145970, 164548, 175164, 205685, 218955, 238860, 246822, 262746, 291940, 370233, 411370, 437910, 452507, 493644, 525492, 617055, 656865, 740466, 822740, 875820, 905014, 1234110, 1313730, 1357521, 1480932, 1810028, 1851165, 2262535, 2468220, 2627460, 2715042, 3702330, 4072563, 4525070, 5430084, 6787605, 7404660, 8145126, 9050140, 13575210, 16290252, 20362815, 27150420, 40725630, 81451260]

約数ペア:

[(1, 81451260), (2, 40725630), (3, 27150420), (4, 20362815), (5, 16290252), (6, 13575210), (9, 9050140), (10, 8145126), (11, 7404660), (12, 6787605), (15, 5430084), (18, 4525070), (20, 4072563), (22, 3702330), (30, 2715042), (31, 2627460), (33, 2468220), (36, 2262535), (44, 1851165), (45, 1810028), (55, 1480932), (60, 1357521), (62, 1313730), (66, 1234110), (90, 905014), (93, 875820), (99, 822740), (110, 740466), (124, 656865), (132, 617055), (155, 525492), (165, 493644), (180, 452507), (186, 437910), (198, 411370), (220, 370233), (279, 291940), (310, 262746), (330, 246822), (341, 238860), (372, 218955), (396, 205685), (465, 175164), (495, 164548), (558, 145970), (620, 131373), (660, 123411), (682, 119430), (930, 87582), (990, 82274), (1023, 79620), (1116, 72985), (1327, 61380), (1364, 59715), (1395, 58388), (1705, 47772), (1860, 43791), (1980, 41137), (2046, 39810), (2654, 30690), (2790, 29194), (3069, 26540), (3410, 23886), (3981, 20460), (4092, 19905), (5115, 15924), (5308, 15345), (5580, 14597), (6138, 13270), (6635, 12276), (6820, 11943), (7962, 10230)]