81220216

素因数分解:

$2^3\times 7^1\times {\mathrm{11}}^1\times {\mathrm{79}}^1\times {\mathrm{1669}}^1$

素因数の和:1772

約数の個数: 64

約数和(自身を含む): 192384000

約数和(自身を除く): 111163784

約数列:

[1, 2, 4, 7, 8, 11, 14, 22, 28, 44, 56, 77, 79, 88, 154, 158, 308, 316, 553, 616, 632, 869, 1106, 1669, 1738, 2212, 3338, 3476, 4424, 6083, 6676, 6952, 11683, 12166, 13352, 18359, 23366, 24332, 36718, 46732, 48664, 73436, 93464, 128513, 131851, 146872, 257026, 263702, 514052, 527404, 922957, 1028104, 1054808, 1450361, 1845914, 2900722, 3691828, 5801444, 7383656, 10152527, 11602888, 20305054, 40610108, 81220216]

約数ペア:

[(1, 81220216), (2, 40610108), (4, 20305054), (7, 11602888), (8, 10152527), (11, 7383656), (14, 5801444), (22, 3691828), (28, 2900722), (44, 1845914), (56, 1450361), (77, 1054808), (79, 1028104), (88, 922957), (154, 527404), (158, 514052), (308, 263702), (316, 257026), (553, 146872), (616, 131851), (632, 128513), (869, 93464), (1106, 73436), (1669, 48664), (1738, 46732), (2212, 36718), (3338, 24332), (3476, 23366), (4424, 18359), (6083, 13352), (6676, 12166), (6952, 11683)]