81964064

素因数分解:

$2^5\times 7^2\times {\mathrm{13}}^1\times {\mathrm{4021}}^1$

素因数の和:4058

約数の個数: 72

約数和(自身を含む): 202202028

約数和(自身を除く): 120237964

約数列:

[1, 2, 4, 7, 8, 13, 14, 16, 26, 28, 32, 49, 52, 56, 91, 98, 104, 112, 182, 196, 208, 224, 364, 392, 416, 637, 728, 784, 1274, 1456, 1568, 2548, 2912, 4021, 5096, 8042, 10192, 16084, 20384, 28147, 32168, 52273, 56294, 64336, 104546, 112588, 128672, 197029, 209092, 225176, 365911, 394058, 418184, 450352, 731822, 788116, 836368, 900704, 1463644, 1576232, 1672736, 2561377, 2927288, 3152464, 5122754, 5854576, 6304928, 10245508, 11709152, 20491016, 40982032, 81964064]

約数ペア:

[(1, 81964064), (2, 40982032), (4, 20491016), (7, 11709152), (8, 10245508), (13, 6304928), (14, 5854576), (16, 5122754), (26, 3152464), (28, 2927288), (32, 2561377), (49, 1672736), (52, 1576232), (56, 1463644), (91, 900704), (98, 836368), (104, 788116), (112, 731822), (182, 450352), (196, 418184), (208, 394058), (224, 365911), (364, 225176), (392, 209092), (416, 197029), (637, 128672), (728, 112588), (784, 104546), (1274, 64336), (1456, 56294), (1568, 52273), (2548, 32168), (2912, 28147), (4021, 20384), (5096, 16084), (8042, 10192)]