81660348

素因数分解:

$2^2\times 3^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{89}}^1\times {\mathrm{331}}^1$

素因数の和:448

約数の個数: 144

約数和(自身を含む): 261031680

約数和(自身を除く): 179371332

約数列:

[1, 2, 3, 4, 6, 7, 9, 11, 12, 14, 18, 21, 22, 28, 33, 36, 42, 44, 63, 66, 77, 84, 89, 99, 126, 132, 154, 178, 198, 231, 252, 267, 308, 331, 356, 396, 462, 534, 623, 662, 693, 801, 924, 979, 993, 1068, 1246, 1324, 1386, 1602, 1869, 1958, 1986, 2317, 2492, 2772, 2937, 2979, 3204, 3641, 3738, 3916, 3972, 4634, 5607, 5874, 5958, 6853, 6951, 7282, 7476, 8811, 9268, 10923, 11214, 11748, 11916, 13706, 13902, 14564, 17622, 20559, 20853, 21846, 22428, 25487, 27412, 27804, 29459, 32769, 35244, 41118, 41706, 43692, 50974, 58918, 61677, 65538, 76461, 82236, 83412, 88377, 101948, 117836, 123354, 131076, 152922, 176754, 206213, 229383, 246708, 265131, 305844, 324049, 353508, 412426, 458766, 530262, 618639, 648098, 824852, 917532, 972147, 1060524, 1237278, 1296196, 1855917, 1944294, 2268343, 2474556, 2916441, 3711834, 3888588, 4536686, 5832882, 6805029, 7423668, 9073372, 11665764, 13610058, 20415087, 27220116, 40830174, 81660348]

約数ペア:

[(1, 81660348), (2, 40830174), (3, 27220116), (4, 20415087), (6, 13610058), (7, 11665764), (9, 9073372), (11, 7423668), (12, 6805029), (14, 5832882), (18, 4536686), (21, 3888588), (22, 3711834), (28, 2916441), (33, 2474556), (36, 2268343), (42, 1944294), (44, 1855917), (63, 1296196), (66, 1237278), (77, 1060524), (84, 972147), (89, 917532), (99, 824852), (126, 648098), (132, 618639), (154, 530262), (178, 458766), (198, 412426), (231, 353508), (252, 324049), (267, 305844), (308, 265131), (331, 246708), (356, 229383), (396, 206213), (462, 176754), (534, 152922), (623, 131076), (662, 123354), (693, 117836), (801, 101948), (924, 88377), (979, 83412), (993, 82236), (1068, 76461), (1246, 65538), (1324, 61677), (1386, 58918), (1602, 50974), (1869, 43692), (1958, 41706), (1986, 41118), (2317, 35244), (2492, 32769), (2772, 29459), (2937, 27804), (2979, 27412), (3204, 25487), (3641, 22428), (3738, 21846), (3916, 20853), (3972, 20559), (4634, 17622), (5607, 14564), (5874, 13902), (5958, 13706), (6853, 11916), (6951, 11748), (7282, 11214), (7476, 10923), (8811, 9268)]