81020229615

素因数分解:

$3^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{293}}^1\times {\mathrm{157561}}^1$

素因数の和:157881

約数の個数: 64

約数和(自身を含む): 155646046080

約数和(自身を除く): 74625816465

約数列:

[1, 3, 5, 9, 13, 15, 27, 39, 45, 65, 117, 135, 195, 293, 351, 585, 879, 1465, 1755, 2637, 3809, 4395, 7911, 11427, 13185, 19045, 34281, 39555, 57135, 102843, 157561, 171405, 472683, 514215, 787805, 1418049, 2048293, 2363415, 4254147, 6144879, 7090245, 10241465, 18434637, 21270735, 30724395, 46165373, 55303911, 92173185, 138496119, 230826865, 276519555, 415488357, 600149849, 692480595, 1246465071, 1800449547, 2077441785, 3000749245, 5401348641, 6232325355, 9002247735, 16204045923, 27006743205, 81020229615]

約数ペア:

[(1, 81020229615), (3, 27006743205), (5, 16204045923), (9, 9002247735), (13, 6232325355), (15, 5401348641), (27, 3000749245), (39, 2077441785), (45, 1800449547), (65, 1246465071), (117, 692480595), (135, 600149849), (195, 415488357), (293, 276519555), (351, 230826865), (585, 138496119), (879, 92173185), (1465, 55303911), (1755, 46165373), (2637, 30724395), (3809, 21270735), (4395, 18434637), (7911, 10241465), (11427, 7090245), (13185, 6144879), (19045, 4254147), (34281, 2363415), (39555, 2048293), (57135, 1418049), (102843, 787805), (157561, 514215), (171405, 472683)]