61287255

素因数分解:

$3^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{1667}}^1$

素因数の和:1740

約数の個数: 48

約数和(自身を含む): 114491520

約数和(自身を除く): 53204265

約数列:

[1, 3, 5, 9, 15, 19, 43, 45, 57, 95, 129, 171, 215, 285, 387, 645, 817, 855, 1667, 1935, 2451, 4085, 5001, 7353, 8335, 12255, 15003, 25005, 31673, 36765, 71681, 75015, 95019, 158365, 215043, 285057, 358405, 475095, 645129, 1075215, 1361939, 1425285, 3225645, 4085817, 6809695, 12257451, 20429085, 61287255]

約数ペア:

[(1, 61287255), (3, 20429085), (5, 12257451), (9, 6809695), (15, 4085817), (19, 3225645), (43, 1425285), (45, 1361939), (57, 1075215), (95, 645129), (129, 475095), (171, 358405), (215, 285057), (285, 215043), (387, 158365), (645, 95019), (817, 75015), (855, 71681), (1667, 36765), (1935, 31673), (2451, 25005), (4085, 15003), (5001, 12255), (7353, 8335)]