20189620460

素因数分解:

$2^2\times 5^1\times {\mathrm{907}}^1\times {\mathrm{1049}}^1\times {\mathrm{1061}}^1$

素因数の和:3026

約数の個数: 48

約数和(自身を含む): 42525453600

約数和(自身を除く): 22335833140

約数列:

[1, 2, 4, 5, 10, 20, 907, 1049, 1061, 1814, 2098, 2122, 3628, 4196, 4244, 4535, 5245, 5305, 9070, 10490, 10610, 18140, 20980, 21220, 951443, 962327, 1112989, 1902886, 1924654, 2225978, 3805772, 3849308, 4451956, 4757215, 4811635, 5564945, 9514430, 9623270, 11129890, 19028860, 19246540, 22259780, 1009481023, 2018962046, 4037924092, 5047405115, 10094810230, 20189620460]

約数ペア:

[(1, 20189620460), (2, 10094810230), (4, 5047405115), (5, 4037924092), (10, 2018962046), (20, 1009481023), (907, 22259780), (1049, 19246540), (1061, 19028860), (1814, 11129890), (2098, 9623270), (2122, 9514430), (3628, 5564945), (4196, 4811635), (4244, 4757215), (4535, 4451956), (5245, 3849308), (5305, 3805772), (9070, 2225978), (10490, 1924654), (10610, 1902886), (18140, 1112989), (20980, 962327), (21220, 951443)]