164590720

素因数分解:

$2^7\times 5^1\times 7^1\times {\mathrm{36739}}^1$

素因数の和:36765

約数の個数: 64

約数和(自身を含む): 449697600

約数和(自身を除く): 285106880

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 56, 64, 70, 80, 112, 128, 140, 160, 224, 280, 320, 448, 560, 640, 896, 1120, 2240, 4480, 36739, 73478, 146956, 183695, 257173, 293912, 367390, 514346, 587824, 734780, 1028692, 1175648, 1285865, 1469560, 2057384, 2351296, 2571730, 2939120, 4114768, 4702592, 5143460, 5878240, 8229536, 10286920, 11756480, 16459072, 20573840, 23512960, 32918144, 41147680, 82295360, 164590720]

約数ペア:

[(1, 164590720), (2, 82295360), (4, 41147680), (5, 32918144), (7, 23512960), (8, 20573840), (10, 16459072), (14, 11756480), (16, 10286920), (20, 8229536), (28, 5878240), (32, 5143460), (35, 4702592), (40, 4114768), (56, 2939120), (64, 2571730), (70, 2351296), (80, 2057384), (112, 1469560), (128, 1285865), (140, 1175648), (160, 1028692), (224, 734780), (280, 587824), (320, 514346), (448, 367390), (560, 293912), (640, 257173), (896, 183695), (1120, 146956), (2240, 73478), (4480, 36739)]