81620865

素因数分解:

$3^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{10607}}^1$

素因数の和:10643

約数の個数: 40

約数和(自身を含む): 154028160

約数和(自身を除く): 72407295

約数列:

[1, 3, 5, 9, 15, 19, 27, 45, 57, 81, 95, 135, 171, 285, 405, 513, 855, 1539, 2565, 7695, 10607, 31821, 53035, 95463, 159105, 201533, 286389, 477315, 604599, 859167, 1007665, 1431945, 1813797, 3022995, 4295835, 5441391, 9068985, 16324173, 27206955, 81620865]

約数ペア:

[(1, 81620865), (3, 27206955), (5, 16324173), (9, 9068985), (15, 5441391), (19, 4295835), (27, 3022995), (45, 1813797), (57, 1431945), (81, 1007665), (95, 859167), (135, 604599), (171, 477315), (285, 286389), (405, 201533), (513, 159105), (855, 95463), (1539, 53035), (2565, 31821), (7695, 10607)]