19531975385

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{193}}^1\times {\mathrm{251}}^1\times {\mathrm{6203}}^1$

素因数の和:6665

約数の個数: 32

約数和(自身を含む): 25477296768

約数和(自身を除く): 5945321383

約数列:

[1, 5, 13, 65, 193, 251, 965, 1255, 2509, 3263, 6203, 12545, 16315, 31015, 48443, 80639, 242215, 403195, 629759, 1197179, 1556953, 3148795, 5985895, 7784765, 15563327, 20240389, 77816635, 101201945, 300491929, 1502459645, 3906395077, 19531975385]

約数ペア:

[(1, 19531975385), (5, 3906395077), (13, 1502459645), (65, 300491929), (193, 101201945), (251, 77816635), (965, 20240389), (1255, 15563327), (2509, 7784765), (3263, 5985895), (6203, 3148795), (12545, 1556953), (16315, 1197179), (31015, 629759), (48443, 403195), (80639, 242215)]