81427060

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{401}}^1$

素因数の和:505

約数の個数: 96

約数和(自身を含む): 204228864

約数和(自身を除く): 122801804

約数列:

[1, 2, 4, 5, 10, 11, 13, 20, 22, 26, 44, 52, 55, 65, 71, 110, 130, 142, 143, 220, 260, 284, 286, 355, 401, 572, 710, 715, 781, 802, 923, 1420, 1430, 1562, 1604, 1846, 2005, 2860, 3124, 3692, 3905, 4010, 4411, 4615, 5213, 7810, 8020, 8822, 9230, 10153, 10426, 15620, 17644, 18460, 20306, 20852, 22055, 26065, 28471, 40612, 44110, 50765, 52130, 56942, 57343, 88220, 101530, 104260, 113884, 114686, 142355, 203060, 229372, 284710, 286715, 313181, 370123, 569420, 573430, 626362, 740246, 1146860, 1252724, 1480492, 1565905, 1850615, 3131810, 3701230, 4071353, 6263620, 7402460, 8142706, 16285412, 20356765, 40713530, 81427060]

約数ペア:

[(1, 81427060), (2, 40713530), (4, 20356765), (5, 16285412), (10, 8142706), (11, 7402460), (13, 6263620), (20, 4071353), (22, 3701230), (26, 3131810), (44, 1850615), (52, 1565905), (55, 1480492), (65, 1252724), (71, 1146860), (110, 740246), (130, 626362), (142, 573430), (143, 569420), (220, 370123), (260, 313181), (284, 286715), (286, 284710), (355, 229372), (401, 203060), (572, 142355), (710, 114686), (715, 113884), (781, 104260), (802, 101530), (923, 88220), (1420, 57343), (1430, 56942), (1562, 52130), (1604, 50765), (1846, 44110), (2005, 40612), (2860, 28471), (3124, 26065), (3692, 22055), (3905, 20852), (4010, 20306), (4411, 18460), (4615, 17644), (5213, 15620), (7810, 10426), (8020, 10153), (8822, 9230)]