18438075

素因数分解:

$3^2\times 5^2\times {\mathrm{19}}^2\times {\mathrm{227}}^1$

素因数の和:281

約数の個数: 54

約数和(自身を含む): 35007804

約数和(自身を除く): 16569729

約数列:

[1, 3, 5, 9, 15, 19, 25, 45, 57, 75, 95, 171, 225, 227, 285, 361, 475, 681, 855, 1083, 1135, 1425, 1805, 2043, 3249, 3405, 4275, 4313, 5415, 5675, 9025, 10215, 12939, 16245, 17025, 21565, 27075, 38817, 51075, 64695, 81225, 81947, 107825, 194085, 245841, 323475, 409735, 737523, 970425, 1229205, 2048675, 3687615, 6146025, 18438075]

約数ペア:

[(1, 18438075), (3, 6146025), (5, 3687615), (9, 2048675), (15, 1229205), (19, 970425), (25, 737523), (45, 409735), (57, 323475), (75, 245841), (95, 194085), (171, 107825), (225, 81947), (227, 81225), (285, 64695), (361, 51075), (475, 38817), (681, 27075), (855, 21565), (1083, 17025), (1135, 16245), (1425, 12939), (1805, 10215), (2043, 9025), (3249, 5675), (3405, 5415), (4275, 4313)]