31657275

素因数分解:

$3^2\times 5^2\times {\mathrm{13}}^1\times {\mathrm{79}}^1\times {\mathrm{137}}^1$

素因数の和:245

約数の個数: 72

約数和(自身を含む): 62287680

約数和(自身を除く): 30630405

約数列:

[1, 3, 5, 9, 13, 15, 25, 39, 45, 65, 75, 79, 117, 137, 195, 225, 237, 325, 395, 411, 585, 685, 711, 975, 1027, 1185, 1233, 1781, 1975, 2055, 2925, 3081, 3425, 3555, 5135, 5343, 5925, 6165, 8905, 9243, 10275, 10823, 15405, 16029, 17775, 25675, 26715, 30825, 32469, 44525, 46215, 54115, 77025, 80145, 97407, 133575, 140699, 162345, 231075, 270575, 400725, 422097, 487035, 703495, 811725, 1266291, 2110485, 2435175, 3517475, 6331455, 10552425, 31657275]

約数ペア:

[(1, 31657275), (3, 10552425), (5, 6331455), (9, 3517475), (13, 2435175), (15, 2110485), (25, 1266291), (39, 811725), (45, 703495), (65, 487035), (75, 422097), (79, 400725), (117, 270575), (137, 231075), (195, 162345), (225, 140699), (237, 133575), (325, 97407), (395, 80145), (411, 77025), (585, 54115), (685, 46215), (711, 44525), (975, 32469), (1027, 30825), (1185, 26715), (1233, 25675), (1781, 17775), (1975, 16029), (2055, 15405), (2925, 10823), (3081, 10275), (3425, 9243), (3555, 8905), (5135, 6165), (5343, 5925)]