640512

素因数分解:

$2^9\times 3^2\times {\mathrm{139}}^1$

素因数の和:163

約数の個数: 60

約数和(自身を含む): 1861860

約数和(自身を除く): 1221348

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 32, 36, 48, 64, 72, 96, 128, 139, 144, 192, 256, 278, 288, 384, 417, 512, 556, 576, 768, 834, 1112, 1152, 1251, 1536, 1668, 2224, 2304, 2502, 3336, 4448, 4608, 5004, 6672, 8896, 10008, 13344, 17792, 20016, 26688, 35584, 40032, 53376, 71168, 80064, 106752, 160128, 213504, 320256, 640512]

約数ペア:

[(1, 640512), (2, 320256), (3, 213504), (4, 160128), (6, 106752), (8, 80064), (9, 71168), (12, 53376), (16, 40032), (18, 35584), (24, 26688), (32, 20016), (36, 17792), (48, 13344), (64, 10008), (72, 8896), (96, 6672), (128, 5004), (139, 4608), (144, 4448), (192, 3336), (256, 2502), (278, 2304), (288, 2224), (384, 1668), (417, 1536), (512, 1251), (556, 1152), (576, 1112), (768, 834)]