72978705

素因数分解:

$3^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{31799}}^1$

素因数の和:31830

約数の個数: 32

約数和(自身を含む): 137376000

約数和(自身を除く): 64397295

約数列:

[1, 3, 5, 9, 15, 17, 27, 45, 51, 85, 135, 153, 255, 459, 765, 2295, 31799, 95397, 158995, 286191, 476985, 540583, 858573, 1430955, 1621749, 2702915, 4292865, 4865247, 8108745, 14595741, 24326235, 72978705]

約数ペア:

[(1, 72978705), (3, 24326235), (5, 14595741), (9, 8108745), (15, 4865247), (17, 4292865), (27, 2702915), (45, 1621749), (51, 1430955), (85, 858573), (135, 540583), (153, 476985), (255, 286191), (459, 158995), (765, 95397), (2295, 31799)]