380930980

素因数分解:

$2^2\times 5^1\times {\mathrm{43}}^2\times {\mathrm{10301}}^1$

素因数の和:10396

約数の個数: 36

約数和(自身を含む): 819070812

約数和(自身を除く): 438139832

約数列:

[1, 2, 4, 5, 10, 20, 43, 86, 172, 215, 430, 860, 1849, 3698, 7396, 9245, 10301, 18490, 20602, 36980, 41204, 51505, 103010, 206020, 442943, 885886, 1771772, 2214715, 4429430, 8858860, 19046549, 38093098, 76186196, 95232745, 190465490, 380930980]

約数ペア:

[(1, 380930980), (2, 190465490), (4, 95232745), (5, 76186196), (10, 38093098), (20, 19046549), (43, 8858860), (86, 4429430), (172, 2214715), (215, 1771772), (430, 885886), (860, 442943), (1849, 206020), (3698, 103010), (7396, 51505), (9245, 41204), (10301, 36980), (18490, 20602)]