668880585

素因数分解:

$3^5\times 5^1\times {\mathrm{550519}}^1$

素因数の和:550539

約数の個数: 24

約数和(自身を含む): 1202335680

約数和(自身を除く): 533455095

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 243, 405, 1215, 550519, 1651557, 2752595, 4954671, 8257785, 14864013, 24773355, 44592039, 74320065, 133776117, 222960195, 668880585]

約数ペア:

[(1, 668880585), (3, 222960195), (5, 133776117), (9, 74320065), (15, 44592039), (27, 24773355), (45, 14864013), (81, 8257785), (135, 4954671), (243, 2752595), (405, 1651557), (1215, 550519)]