68005575

素因数分解:

$3^4\times 5^2\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{71}}^1$

素因数の和:147

約数の個数: 120

約数和(自身を含む): 142598016

約数和(自身を除く): 74592441

約数列:

[1, 3, 5, 9, 11, 15, 25, 27, 33, 43, 45, 55, 71, 75, 81, 99, 129, 135, 165, 213, 215, 225, 275, 297, 355, 387, 405, 473, 495, 639, 645, 675, 781, 825, 891, 1065, 1075, 1161, 1419, 1485, 1775, 1917, 1935, 2025, 2343, 2365, 2475, 3053, 3195, 3225, 3483, 3905, 4257, 4455, 5325, 5751, 5805, 7029, 7095, 7425, 9159, 9585, 9675, 11715, 11825, 12771, 15265, 15975, 17415, 19525, 21087, 21285, 22275, 27477, 28755, 29025, 33583, 35145, 35475, 38313, 45795, 47925, 58575, 63261, 63855, 76325, 82431, 87075, 100749, 105435, 106425, 137385, 143775, 167915, 175725, 191565, 228975, 247293, 302247, 316305, 319275, 412155, 503745, 527175, 686925, 839575, 906741, 957825, 1236465, 1511235, 1581525, 2060775, 2518725, 2720223, 4533705, 6182325, 7556175, 13601115, 22668525, 68005575]

約数ペア:

[(1, 68005575), (3, 22668525), (5, 13601115), (9, 7556175), (11, 6182325), (15, 4533705), (25, 2720223), (27, 2518725), (33, 2060775), (43, 1581525), (45, 1511235), (55, 1236465), (71, 957825), (75, 906741), (81, 839575), (99, 686925), (129, 527175), (135, 503745), (165, 412155), (213, 319275), (215, 316305), (225, 302247), (275, 247293), (297, 228975), (355, 191565), (387, 175725), (405, 167915), (473, 143775), (495, 137385), (639, 106425), (645, 105435), (675, 100749), (781, 87075), (825, 82431), (891, 76325), (1065, 63855), (1075, 63261), (1161, 58575), (1419, 47925), (1485, 45795), (1775, 38313), (1917, 35475), (1935, 35145), (2025, 33583), (2343, 29025), (2365, 28755), (2475, 27477), (3053, 22275), (3195, 21285), (3225, 21087), (3483, 19525), (3905, 17415), (4257, 15975), (4455, 15265), (5325, 12771), (5751, 11825), (5805, 11715), (7029, 9675), (7095, 9585), (7425, 9159)]