19741960

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{70507}}^1$

素因数の和:70525

約数の個数: 32

約数和(自身を含む): 50765760

約数和(自身を除く): 31023800

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 70507, 141014, 282028, 352535, 493549, 564056, 705070, 987098, 1410140, 1974196, 2467745, 2820280, 3948392, 4935490, 9870980, 19741960]

約数ペア:

[(1, 19741960), (2, 9870980), (4, 4935490), (5, 3948392), (7, 2820280), (8, 2467745), (10, 1974196), (14, 1410140), (20, 987098), (28, 705070), (35, 564056), (40, 493549), (56, 352535), (70, 282028), (140, 141014), (280, 70507)]