1398458320

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{281}}^1\times {\mathrm{8887}}^1$

素因数の和:9188

約数の個数: 80

約数和(自身を含む): 3729547008

約数和(自身を除く): 2331088688

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 280, 281, 560, 562, 1124, 1405, 1967, 2248, 2810, 3934, 4496, 5620, 7868, 8887, 9835, 11240, 15736, 17774, 19670, 22480, 31472, 35548, 39340, 44435, 62209, 71096, 78680, 88870, 124418, 142192, 157360, 177740, 248836, 311045, 355480, 497672, 622090, 710960, 995344, 1244180, 2488360, 2497247, 4976720, 4994494, 9988988, 12486235, 17480729, 19977976, 24972470, 34961458, 39955952, 49944940, 69922916, 87403645, 99889880, 139845832, 174807290, 199779760, 279691664, 349614580, 699229160, 1398458320]

約数ペア:

[(1, 1398458320), (2, 699229160), (4, 349614580), (5, 279691664), (7, 199779760), (8, 174807290), (10, 139845832), (14, 99889880), (16, 87403645), (20, 69922916), (28, 49944940), (35, 39955952), (40, 34961458), (56, 24972470), (70, 19977976), (80, 17480729), (112, 12486235), (140, 9988988), (280, 4994494), (281, 4976720), (560, 2497247), (562, 2488360), (1124, 1244180), (1405, 995344), (1967, 710960), (2248, 622090), (2810, 497672), (3934, 355480), (4496, 311045), (5620, 248836), (7868, 177740), (8887, 157360), (9835, 142192), (11240, 124418), (15736, 88870), (17774, 78680), (19670, 71096), (22480, 62209), (31472, 44435), (35548, 39340)]