81240462

素因数分解:

$2^1\times 3^3\times {\mathrm{23}}^1\times {\mathrm{149}}^1\times {\mathrm{439}}^1$

素因数の和:622

約数の個数: 64

約数和(自身を含む): 190080000

約数和(自身を除く): 108839538

約数列:

[1, 2, 3, 6, 9, 18, 23, 27, 46, 54, 69, 138, 149, 207, 298, 414, 439, 447, 621, 878, 894, 1242, 1317, 1341, 2634, 2682, 3427, 3951, 4023, 6854, 7902, 8046, 10097, 10281, 11853, 20194, 20562, 23706, 30291, 30843, 60582, 61686, 65411, 90873, 92529, 130822, 181746, 185058, 196233, 272619, 392466, 545238, 588699, 1177398, 1504453, 1766097, 3008906, 3532194, 4513359, 9026718, 13540077, 27080154, 40620231, 81240462]

約数ペア:

[(1, 81240462), (2, 40620231), (3, 27080154), (6, 13540077), (9, 9026718), (18, 4513359), (23, 3532194), (27, 3008906), (46, 1766097), (54, 1504453), (69, 1177398), (138, 588699), (149, 545238), (207, 392466), (298, 272619), (414, 196233), (439, 185058), (447, 181746), (621, 130822), (878, 92529), (894, 90873), (1242, 65411), (1317, 61686), (1341, 60582), (2634, 30843), (2682, 30291), (3427, 23706), (3951, 20562), (4023, 20194), (6854, 11853), (7902, 10281), (8046, 10097)]