81493524

素因数分解:

$2^2\times 3^2\times 7^1\times {\mathrm{331}}^1\times {\mathrm{977}}^1$

素因数の和:1325

約数の個数: 72

約数和(自身を含む): 236378688

約数和(自身を除く): 154885164

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 28, 36, 42, 63, 84, 126, 252, 331, 662, 977, 993, 1324, 1954, 1986, 2317, 2931, 2979, 3908, 3972, 4634, 5862, 5958, 6839, 6951, 8793, 9268, 11724, 11916, 13678, 13902, 17586, 20517, 20853, 27356, 27804, 35172, 41034, 41706, 61551, 82068, 83412, 123102, 246204, 323387, 646774, 970161, 1293548, 1940322, 2263709, 2910483, 3880644, 4527418, 5820966, 6791127, 9054836, 11641932, 13582254, 20373381, 27164508, 40746762, 81493524]

約数ペア:

[(1, 81493524), (2, 40746762), (3, 27164508), (4, 20373381), (6, 13582254), (7, 11641932), (9, 9054836), (12, 6791127), (14, 5820966), (18, 4527418), (21, 3880644), (28, 2910483), (36, 2263709), (42, 1940322), (63, 1293548), (84, 970161), (126, 646774), (252, 323387), (331, 246204), (662, 123102), (977, 83412), (993, 82068), (1324, 61551), (1954, 41706), (1986, 41034), (2317, 35172), (2931, 27804), (2979, 27356), (3908, 20853), (3972, 20517), (4634, 17586), (5862, 13902), (5958, 13678), (6839, 11916), (6951, 11724), (8793, 9268)]