638849984

素因数分解:

$2^6\times {\mathrm{31}}^1\times {\mathrm{322001}}^1$

素因数の和:322044

約数の個数: 28

約数和(自身を含む): 1308616128

約数和(自身を除く): 669766144

約数列:

[1, 2, 4, 8, 16, 31, 32, 62, 64, 124, 248, 496, 992, 1984, 322001, 644002, 1288004, 2576008, 5152016, 9982031, 10304032, 19964062, 20608064, 39928124, 79856248, 159712496, 319424992, 638849984]

約数ペア:

[(1, 638849984), (2, 319424992), (4, 159712496), (8, 79856248), (16, 39928124), (31, 20608064), (32, 19964062), (62, 10304032), (64, 9982031), (124, 5152016), (248, 2576008), (496, 1288004), (992, 644002), (1984, 322001)]