27771255

素因数分解:

$3^6\times 5^1\times {\mathrm{19}}^1\times {\mathrm{401}}^1$

素因数の和:443

約数の個数: 56

約数和(自身を含む): 52726320

約数和(自身を除く): 24955065

約数列:

[1, 3, 5, 9, 15, 19, 27, 45, 57, 81, 95, 135, 171, 243, 285, 401, 405, 513, 729, 855, 1203, 1215, 1539, 2005, 2565, 3609, 3645, 4617, 6015, 7619, 7695, 10827, 13851, 18045, 22857, 23085, 32481, 38095, 54135, 68571, 69255, 97443, 114285, 162405, 205713, 292329, 342855, 487215, 617139, 1028565, 1461645, 1851417, 3085695, 5554251, 9257085, 27771255]

約数ペア:

[(1, 27771255), (3, 9257085), (5, 5554251), (9, 3085695), (15, 1851417), (19, 1461645), (27, 1028565), (45, 617139), (57, 487215), (81, 342855), (95, 292329), (135, 205713), (171, 162405), (243, 114285), (285, 97443), (401, 69255), (405, 68571), (513, 54135), (729, 38095), (855, 32481), (1203, 23085), (1215, 22857), (1539, 18045), (2005, 13851), (2565, 10827), (3609, 7695), (3645, 7619), (4617, 6015)]