19829260

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{173}}^1\times {\mathrm{521}}^1$

素因数の和:714

約数の個数: 48

約数和(自身を含む): 45777312

約数和(自身を除く): 25948052

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 173, 220, 346, 521, 692, 865, 1042, 1730, 1903, 2084, 2605, 3460, 3806, 5210, 5731, 7612, 9515, 10420, 11462, 19030, 22924, 28655, 38060, 57310, 90133, 114620, 180266, 360532, 450665, 901330, 991463, 1802660, 1982926, 3965852, 4957315, 9914630, 19829260]

約数ペア:

[(1, 19829260), (2, 9914630), (4, 4957315), (5, 3965852), (10, 1982926), (11, 1802660), (20, 991463), (22, 901330), (44, 450665), (55, 360532), (110, 180266), (173, 114620), (220, 90133), (346, 57310), (521, 38060), (692, 28655), (865, 22924), (1042, 19030), (1730, 11462), (1903, 10420), (2084, 9515), (2605, 7612), (3460, 5731), (3806, 5210)]