20164866100

素因数分解:

$2^2\times 5^2\times {\mathrm{181}}^1\times {\mathrm{271}}^1\times {\mathrm{4111}}^1$

素因数の和:4577

約数の個数: 72

約数和(自身を含む): 44172617216

約数和(自身を除く): 24007751116

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 181, 271, 362, 542, 724, 905, 1084, 1355, 1810, 2710, 3620, 4111, 4525, 5420, 6775, 8222, 9050, 13550, 16444, 18100, 20555, 27100, 41110, 49051, 82220, 98102, 102775, 196204, 205550, 245255, 411100, 490510, 744091, 981020, 1114081, 1226275, 1488182, 2228162, 2452550, 2976364, 3720455, 4456324, 4905100, 5570405, 7440910, 11140810, 14881820, 18602275, 22281620, 27852025, 37204550, 55704050, 74409100, 111408100, 201648661, 403297322, 806594644, 1008243305, 2016486610, 4032973220, 5041216525, 10082433050, 20164866100]

約数ペア:

[(1, 20164866100), (2, 10082433050), (4, 5041216525), (5, 4032973220), (10, 2016486610), (20, 1008243305), (25, 806594644), (50, 403297322), (100, 201648661), (181, 111408100), (271, 74409100), (362, 55704050), (542, 37204550), (724, 27852025), (905, 22281620), (1084, 18602275), (1355, 14881820), (1810, 11140810), (2710, 7440910), (3620, 5570405), (4111, 4905100), (4525, 4456324), (5420, 3720455), (6775, 2976364), (8222, 2452550), (9050, 2228162), (13550, 1488182), (16444, 1226275), (18100, 1114081), (20555, 981020), (27100, 744091), (41110, 490510), (49051, 411100), (82220, 245255), (98102, 205550), (102775, 196204)]