638550081

素因数分解:

$3^3\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{23}}^2\times {\mathrm{181}}^1$

素因数の和:268

約数の個数: 96

約数和(自身を含む): 1127235200

約数和(自身を除く): 488685119

約数列:

[1, 3, 9, 13, 19, 23, 27, 39, 57, 69, 117, 171, 181, 207, 247, 299, 351, 437, 513, 529, 543, 621, 741, 897, 1311, 1587, 1629, 2223, 2353, 2691, 3439, 3933, 4163, 4761, 4887, 5681, 6669, 6877, 7059, 8073, 10051, 10317, 11799, 12489, 14283, 17043, 20631, 21177, 30153, 30951, 37467, 44707, 51129, 54119, 61893, 63531, 79097, 90459, 92853, 95749, 112401, 130663, 134121, 153387, 162357, 185679, 237291, 271377, 287247, 391989, 402363, 487071, 711873, 861741, 1028261, 1175967, 1207089, 1244737, 1461213, 1819231, 2135619, 2585223, 3084783, 3527901, 3734211, 5457693, 9254349, 11202633, 16373079, 23650003, 27763047, 33607899, 49119237, 70950009, 212850027, 638550081]

約数ペア:

[(1, 638550081), (3, 212850027), (9, 70950009), (13, 49119237), (19, 33607899), (23, 27763047), (27, 23650003), (39, 16373079), (57, 11202633), (69, 9254349), (117, 5457693), (171, 3734211), (181, 3527901), (207, 3084783), (247, 2585223), (299, 2135619), (351, 1819231), (437, 1461213), (513, 1244737), (529, 1207089), (543, 1175967), (621, 1028261), (741, 861741), (897, 711873), (1311, 487071), (1587, 402363), (1629, 391989), (2223, 287247), (2353, 271377), (2691, 237291), (3439, 185679), (3933, 162357), (4163, 153387), (4761, 134121), (4887, 130663), (5681, 112401), (6669, 95749), (6877, 92853), (7059, 90459), (8073, 79097), (10051, 63531), (10317, 61893), (11799, 54119), (12489, 51129), (14283, 44707), (17043, 37467), (20631, 30951), (21177, 30153)]