20025620

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{151}}^1\times {\mathrm{349}}^1$

素因数の和:528

約数の個数: 48

約数和(自身を含む): 44688000

約数和(自身を除く): 24662380

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 151, 190, 302, 349, 380, 604, 698, 755, 1396, 1510, 1745, 2869, 3020, 3490, 5738, 6631, 6980, 11476, 13262, 14345, 26524, 28690, 33155, 52699, 57380, 66310, 105398, 132620, 210796, 263495, 526990, 1001281, 1053980, 2002562, 4005124, 5006405, 10012810, 20025620]

約数ペア:

[(1, 20025620), (2, 10012810), (4, 5006405), (5, 4005124), (10, 2002562), (19, 1053980), (20, 1001281), (38, 526990), (76, 263495), (95, 210796), (151, 132620), (190, 105398), (302, 66310), (349, 57380), (380, 52699), (604, 33155), (698, 28690), (755, 26524), (1396, 14345), (1510, 13262), (1745, 11476), (2869, 6980), (3020, 6631), (3490, 5738)]