20199080

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{1583}}^1$

素因数の和:1634

約数の個数: 64

約数和(自身を含む): 51321600

約数和(自身を除く): 31122520

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 29, 40, 44, 55, 58, 88, 110, 116, 145, 220, 232, 290, 319, 440, 580, 638, 1160, 1276, 1583, 1595, 2552, 3166, 3190, 6332, 6380, 7915, 12664, 12760, 15830, 17413, 31660, 34826, 45907, 63320, 69652, 87065, 91814, 139304, 174130, 183628, 229535, 348260, 367256, 459070, 504977, 696520, 918140, 1009954, 1836280, 2019908, 2524885, 4039816, 5049770, 10099540, 20199080]

約数ペア:

[(1, 20199080), (2, 10099540), (4, 5049770), (5, 4039816), (8, 2524885), (10, 2019908), (11, 1836280), (20, 1009954), (22, 918140), (29, 696520), (40, 504977), (44, 459070), (55, 367256), (58, 348260), (88, 229535), (110, 183628), (116, 174130), (145, 139304), (220, 91814), (232, 87065), (290, 69652), (319, 63320), (440, 45907), (580, 34826), (638, 31660), (1160, 17413), (1276, 15830), (1583, 12760), (1595, 12664), (2552, 7915), (3166, 6380), (3190, 6332)]