39687975

素因数分解:

$3^5\times 5^2\times {\mathrm{47}}^1\times {\mathrm{139}}^1$

素因数の和:211

約数の個数: 72

約数和(自身を含む): 75828480

約数和(自身を除く): 36140505

約数列:

[1, 3, 5, 9, 15, 25, 27, 45, 47, 75, 81, 135, 139, 141, 225, 235, 243, 405, 417, 423, 675, 695, 705, 1175, 1215, 1251, 1269, 2025, 2085, 2115, 3475, 3525, 3753, 3807, 6075, 6255, 6345, 6533, 10425, 10575, 11259, 11421, 18765, 19035, 19599, 31275, 31725, 32665, 33777, 56295, 57105, 58797, 93825, 95175, 97995, 163325, 168885, 176391, 281475, 285525, 293985, 489975, 529173, 844425, 881955, 1469925, 1587519, 2645865, 4409775, 7937595, 13229325, 39687975]

約数ペア:

[(1, 39687975), (3, 13229325), (5, 7937595), (9, 4409775), (15, 2645865), (25, 1587519), (27, 1469925), (45, 881955), (47, 844425), (75, 529173), (81, 489975), (135, 293985), (139, 285525), (141, 281475), (225, 176391), (235, 168885), (243, 163325), (405, 97995), (417, 95175), (423, 93825), (675, 58797), (695, 57105), (705, 56295), (1175, 33777), (1215, 32665), (1251, 31725), (1269, 31275), (2025, 19599), (2085, 19035), (2115, 18765), (3475, 11421), (3525, 11259), (3753, 10575), (3807, 10425), (6075, 6533), (6255, 6345)]