890393508

素因数分解:

$2^2\times 3^2\times {\mathrm{197}}^1\times {\mathrm{223}}^1\times {\mathrm{563}}^1$

素因数の和:993

約数の個数: 72

約数和(自身を含む): 2276322048

約数和(自身を除く): 1385928540

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 197, 223, 394, 446, 563, 591, 669, 788, 892, 1126, 1182, 1338, 1689, 1773, 2007, 2252, 2364, 2676, 3378, 3546, 4014, 5067, 6756, 7092, 8028, 10134, 20268, 43931, 87862, 110911, 125549, 131793, 175724, 221822, 251098, 263586, 332733, 376647, 395379, 443644, 502196, 527172, 665466, 753294, 790758, 998199, 1129941, 1330932, 1506588, 1581516, 1996398, 2259882, 3992796, 4519764, 24733153, 49466306, 74199459, 98932612, 148398918, 222598377, 296797836, 445196754, 890393508]

約数ペア:

[(1, 890393508), (2, 445196754), (3, 296797836), (4, 222598377), (6, 148398918), (9, 98932612), (12, 74199459), (18, 49466306), (36, 24733153), (197, 4519764), (223, 3992796), (394, 2259882), (446, 1996398), (563, 1581516), (591, 1506588), (669, 1330932), (788, 1129941), (892, 998199), (1126, 790758), (1182, 753294), (1338, 665466), (1689, 527172), (1773, 502196), (2007, 443644), (2252, 395379), (2364, 376647), (2676, 332733), (3378, 263586), (3546, 251098), (4014, 221822), (5067, 175724), (6756, 131793), (7092, 125549), (8028, 110911), (10134, 87862), (20268, 43931)]