1230742720

素因数分解:

$2^6\times 5^1\times {\mathrm{991}}^1\times {\mathrm{3881}}^1$

素因数の和:4889

約数の個数: 56

約数和(自身を含む): 2934419328

約数和(自身を除く): 1703676608

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 320, 991, 1982, 3881, 3964, 4955, 7762, 7928, 9910, 15524, 15856, 19405, 19820, 31048, 31712, 38810, 39640, 62096, 63424, 77620, 79280, 124192, 155240, 158560, 248384, 310480, 317120, 620960, 1241920, 3846071, 7692142, 15384284, 19230355, 30768568, 38460710, 61537136, 76921420, 123074272, 153842840, 246148544, 307685680, 615371360, 1230742720]

約数ペア:

[(1, 1230742720), (2, 615371360), (4, 307685680), (5, 246148544), (8, 153842840), (10, 123074272), (16, 76921420), (20, 61537136), (32, 38460710), (40, 30768568), (64, 19230355), (80, 15384284), (160, 7692142), (320, 3846071), (991, 1241920), (1982, 620960), (3881, 317120), (3964, 310480), (4955, 248384), (7762, 158560), (7928, 155240), (9910, 124192), (15524, 79280), (15856, 77620), (19405, 63424), (19820, 62096), (31048, 39640), (31712, 38810)]