277400720

素因数分解:

$2^4\times 5^1\times {\mathrm{991}}^1\times {\mathrm{3499}}^1$

素因数の和:4503

約数の個数: 40

約数和(自身を含む): 645792000

約数和(自身を除く): 368391280

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 991, 1982, 3499, 3964, 4955, 6998, 7928, 9910, 13996, 15856, 17495, 19820, 27992, 34990, 39640, 55984, 69980, 79280, 139960, 279920, 3467509, 6935018, 13870036, 17337545, 27740072, 34675090, 55480144, 69350180, 138700360, 277400720]

約数ペア:

[(1, 277400720), (2, 138700360), (4, 69350180), (5, 55480144), (8, 34675090), (10, 27740072), (16, 17337545), (20, 13870036), (40, 6935018), (80, 3467509), (991, 279920), (1982, 139960), (3499, 79280), (3964, 69980), (4955, 55984), (6998, 39640), (7928, 34990), (9910, 27992), (13996, 19820), (15856, 17495)]