20153193736

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{487}}^1\times {\mathrm{397907}}^1$

素因数の和:398413

約数の個数: 32

約数和(自身を含む): 40777611840

約数和(自身を除く): 20624418104

約数列:

[1, 2, 4, 8, 13, 26, 52, 104, 487, 974, 1948, 3896, 6331, 12662, 25324, 50648, 397907, 795814, 1591628, 3183256, 5172791, 10345582, 20691164, 41382328, 193780709, 387561418, 775122836, 1550245672, 2519149217, 5038298434, 10076596868, 20153193736]

約数ペア:

[(1, 20153193736), (2, 10076596868), (4, 5038298434), (8, 2519149217), (13, 1550245672), (26, 775122836), (52, 387561418), (104, 193780709), (487, 41382328), (974, 20691164), (1948, 10345582), (3896, 5172791), (6331, 3183256), (12662, 1591628), (25324, 795814), (50648, 397907)]