1221075

素因数分解:

$3^6\times 5^2\times {\mathrm{67}}^1$

素因数の和:95

約数の個数: 42

約数和(自身を含む): 2304044

約数和(自身を除く): 1082969

約数列:

[1, 3, 5, 9, 15, 25, 27, 45, 67, 75, 81, 135, 201, 225, 243, 335, 405, 603, 675, 729, 1005, 1215, 1675, 1809, 2025, 3015, 3645, 5025, 5427, 6075, 9045, 15075, 16281, 18225, 27135, 45225, 48843, 81405, 135675, 244215, 407025, 1221075]

約数ペア:

[(1, 1221075), (3, 407025), (5, 244215), (9, 135675), (15, 81405), (25, 48843), (27, 45225), (45, 27135), (67, 18225), (75, 16281), (81, 15075), (135, 9045), (201, 6075), (225, 5427), (243, 5025), (335, 3645), (405, 3015), (603, 2025), (675, 1809), (729, 1675), (1005, 1215)]