661818752

素因数分解:

$2^7\times 7^1\times {\mathrm{31}}^1\times {\mathrm{23827}}^1$

素因数の和:23879

約数の個数: 64

約数和(自身を含む): 1555491840

約数和(自身を除く): 893673088

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 31, 32, 56, 62, 64, 112, 124, 128, 217, 224, 248, 434, 448, 496, 868, 896, 992, 1736, 1984, 3472, 3968, 6944, 13888, 23827, 27776, 47654, 95308, 166789, 190616, 333578, 381232, 667156, 738637, 762464, 1334312, 1477274, 1524928, 2668624, 2954548, 3049856, 5170459, 5337248, 5909096, 10340918, 10674496, 11818192, 20681836, 21348992, 23636384, 41363672, 47272768, 82727344, 94545536, 165454688, 330909376, 661818752]

約数ペア:

[(1, 661818752), (2, 330909376), (4, 165454688), (7, 94545536), (8, 82727344), (14, 47272768), (16, 41363672), (28, 23636384), (31, 21348992), (32, 20681836), (56, 11818192), (62, 10674496), (64, 10340918), (112, 5909096), (124, 5337248), (128, 5170459), (217, 3049856), (224, 2954548), (248, 2668624), (434, 1524928), (448, 1477274), (496, 1334312), (868, 762464), (896, 738637), (992, 667156), (1736, 381232), (1984, 333578), (3472, 190616), (3968, 166789), (6944, 95308), (13888, 47654), (23827, 27776)]