1293975

素因数分解:

$3^6\times 5^2\times {\mathrm{71}}^1$

素因数の和:99

約数の個数: 42

約数和(自身を含む): 2439576

約数和(自身を除く): 1145601

約数列:

[1, 3, 5, 9, 15, 25, 27, 45, 71, 75, 81, 135, 213, 225, 243, 355, 405, 639, 675, 729, 1065, 1215, 1775, 1917, 2025, 3195, 3645, 5325, 5751, 6075, 9585, 15975, 17253, 18225, 28755, 47925, 51759, 86265, 143775, 258795, 431325, 1293975]

約数ペア:

[(1, 1293975), (3, 431325), (5, 258795), (9, 143775), (15, 86265), (25, 51759), (27, 47925), (45, 28755), (71, 18225), (75, 17253), (81, 15975), (135, 9585), (213, 6075), (225, 5751), (243, 5325), (355, 3645), (405, 3195), (639, 2025), (675, 1917), (729, 1775), (1065, 1215)]