20578168

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{6823}}^1$

素因数の和:6871

約数の個数: 32

約数和(自身を含む): 42991200

約数和(自身を除く): 22413032

約数列:

[1, 2, 4, 8, 13, 26, 29, 52, 58, 104, 116, 232, 377, 754, 1508, 3016, 6823, 13646, 27292, 54584, 88699, 177398, 197867, 354796, 395734, 709592, 791468, 1582936, 2572271, 5144542, 10289084, 20578168]

約数ペア:

[(1, 20578168), (2, 10289084), (4, 5144542), (8, 2572271), (13, 1582936), (26, 791468), (29, 709592), (52, 395734), (58, 354796), (104, 197867), (116, 177398), (232, 88699), (377, 54584), (754, 27292), (1508, 13646), (3016, 6823)]