20163553180

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{1999}}^1\times {\mathrm{12301}}^1$

素因数の和:14350

約数の個数: 48

約数和(自身を含む): 43401456000

約数和(自身を除く): 23237902820

約数列:

[1, 2, 4, 5, 10, 20, 41, 82, 164, 205, 410, 820, 1999, 3998, 7996, 9995, 12301, 19990, 24602, 39980, 49204, 61505, 81959, 123010, 163918, 246020, 327836, 409795, 504341, 819590, 1008682, 1639180, 2017364, 2521705, 5043410, 10086820, 24589699, 49179398, 98358796, 122948495, 245896990, 491793980, 1008177659, 2016355318, 4032710636, 5040888295, 10081776590, 20163553180]

約数ペア:

[(1, 20163553180), (2, 10081776590), (4, 5040888295), (5, 4032710636), (10, 2016355318), (20, 1008177659), (41, 491793980), (82, 245896990), (164, 122948495), (205, 98358796), (410, 49179398), (820, 24589699), (1999, 10086820), (3998, 5043410), (7996, 2521705), (9995, 2017364), (12301, 1639180), (19990, 1008682), (24602, 819590), (39980, 504341), (49204, 409795), (61505, 327836), (81959, 246020), (123010, 163918)]