393882880

素因数分解:

$2^8\times 5^1\times {\mathrm{127}}^1\times {\mathrm{2423}}^1$

素因数の和:2571

約数の個数: 72

約数和(自身を含む): 951293952

約数和(自身を除く): 557411072

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 127, 128, 160, 254, 256, 320, 508, 635, 640, 1016, 1270, 1280, 2032, 2423, 2540, 4064, 4846, 5080, 8128, 9692, 10160, 12115, 16256, 19384, 20320, 24230, 32512, 38768, 40640, 48460, 77536, 81280, 96920, 155072, 162560, 193840, 307721, 310144, 387680, 615442, 620288, 775360, 1230884, 1538605, 1550720, 2461768, 3077210, 3101440, 4923536, 6154420, 9847072, 12308840, 19694144, 24617680, 39388288, 49235360, 78776576, 98470720, 196941440, 393882880]

約数ペア:

[(1, 393882880), (2, 196941440), (4, 98470720), (5, 78776576), (8, 49235360), (10, 39388288), (16, 24617680), (20, 19694144), (32, 12308840), (40, 9847072), (64, 6154420), (80, 4923536), (127, 3101440), (128, 3077210), (160, 2461768), (254, 1550720), (256, 1538605), (320, 1230884), (508, 775360), (635, 620288), (640, 615442), (1016, 387680), (1270, 310144), (1280, 307721), (2032, 193840), (2423, 162560), (2540, 155072), (4064, 96920), (4846, 81280), (5080, 77536), (8128, 48460), (9692, 40640), (10160, 38768), (12115, 32512), (16256, 24230), (19384, 20320)]