291213097040

素因数分解:

$2^4\times 5^1\times {\mathrm{3640163713}}^1$

素因数の和:3640163726

約数の個数: 20

約数和(自身を含む): 677070450804

約数和(自身を除く): 385857353764

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 3640163713, 7280327426, 14560654852, 18200818565, 29121309704, 36401637130, 58242619408, 72803274260, 145606548520, 291213097040]

約数ペア:

[(1, 291213097040), (2, 145606548520), (4, 72803274260), (5, 58242619408), (8, 36401637130), (10, 29121309704), (16, 18200818565), (20, 14560654852), (40, 7280327426), (80, 3640163713)]