19288883140

素因数分解:

$2^2\times 5^1\times {\mathrm{251}}^1\times {\mathrm{257}}^1\times {\mathrm{14951}}^1$

素因数の和:15468

約数の個数: 48

約数和(自身を含む): 40829007744

約数和(自身を除く): 21540124604

約数列:

[1, 2, 4, 5, 10, 20, 251, 257, 502, 514, 1004, 1028, 1255, 1285, 2510, 2570, 5020, 5140, 14951, 29902, 59804, 64507, 74755, 129014, 149510, 258028, 299020, 322535, 645070, 1290140, 3752701, 3842407, 7505402, 7684814, 15010804, 15369628, 18763505, 19212035, 37527010, 38424070, 75054020, 76848140, 964444157, 1928888314, 3857776628, 4822220785, 9644441570, 19288883140]

約数ペア:

[(1, 19288883140), (2, 9644441570), (4, 4822220785), (5, 3857776628), (10, 1928888314), (20, 964444157), (251, 76848140), (257, 75054020), (502, 38424070), (514, 37527010), (1004, 19212035), (1028, 18763505), (1255, 15369628), (1285, 15010804), (2510, 7684814), (2570, 7505402), (5020, 3842407), (5140, 3752701), (14951, 1290140), (29902, 645070), (59804, 322535), (64507, 299020), (74755, 258028), (129014, 149510)]