261425040

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{89}}^1\times {\mathrm{12239}}^1$

素因数の和:12344

約数の個数: 80

約数和(自身を含む): 819590400

約数和(自身を除く): 558165360

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 80, 89, 120, 178, 240, 267, 356, 445, 534, 712, 890, 1068, 1335, 1424, 1780, 2136, 2670, 3560, 4272, 5340, 7120, 10680, 12239, 21360, 24478, 36717, 48956, 61195, 73434, 97912, 122390, 146868, 183585, 195824, 244780, 293736, 367170, 489560, 587472, 734340, 979120, 1089271, 1468680, 2178542, 2937360, 3267813, 4357084, 5446355, 6535626, 8714168, 10892710, 13071252, 16339065, 17428336, 21785420, 26142504, 32678130, 43570840, 52285008, 65356260, 87141680, 130712520, 261425040]

約数ペア:

[(1, 261425040), (2, 130712520), (3, 87141680), (4, 65356260), (5, 52285008), (6, 43570840), (8, 32678130), (10, 26142504), (12, 21785420), (15, 17428336), (16, 16339065), (20, 13071252), (24, 10892710), (30, 8714168), (40, 6535626), (48, 5446355), (60, 4357084), (80, 3267813), (89, 2937360), (120, 2178542), (178, 1468680), (240, 1089271), (267, 979120), (356, 734340), (445, 587472), (534, 489560), (712, 367170), (890, 293736), (1068, 244780), (1335, 195824), (1424, 183585), (1780, 146868), (2136, 122390), (2670, 97912), (3560, 73434), (4272, 61195), (5340, 48956), (7120, 36717), (10680, 24478), (12239, 21360)]