640042802

素因数分解:

$2^1\times 7^3\times {\mathrm{31}}^1\times {\mathrm{30097}}^1$

素因数の和:30151

約数の個数: 32

約数和(自身を含む): 1155763200

約数和(自身を除く): 515720398

約数列:

[1, 2, 7, 14, 31, 49, 62, 98, 217, 343, 434, 686, 1519, 3038, 10633, 21266, 30097, 60194, 210679, 421358, 933007, 1474753, 1866014, 2949506, 6531049, 10323271, 13062098, 20646542, 45717343, 91434686, 320021401, 640042802]

約数ペア:

[(1, 640042802), (2, 320021401), (7, 91434686), (14, 45717343), (31, 20646542), (49, 13062098), (62, 10323271), (98, 6531049), (217, 2949506), (343, 1866014), (434, 1474753), (686, 933007), (1519, 421358), (3038, 210679), (10633, 60194), (21266, 30097)]