20808886340

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{173}}^1\times {\mathrm{546739}}^1$

素因数の和:546932

約数の個数: 48

約数和(自身を含む): 47946911040

約数和(自身を除く): 27138024700

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 173, 220, 346, 692, 865, 1730, 1903, 3460, 3806, 7612, 9515, 19030, 38060, 546739, 1093478, 2186956, 2733695, 5467390, 6014129, 10934780, 12028258, 24056516, 30070645, 60141290, 94585847, 120282580, 189171694, 378343388, 472929235, 945858470, 1040444317, 1891716940, 2080888634, 4161777268, 5202221585, 10404443170, 20808886340]

約数ペア:

[(1, 20808886340), (2, 10404443170), (4, 5202221585), (5, 4161777268), (10, 2080888634), (11, 1891716940), (20, 1040444317), (22, 945858470), (44, 472929235), (55, 378343388), (110, 189171694), (173, 120282580), (220, 94585847), (346, 60141290), (692, 30070645), (865, 24056516), (1730, 12028258), (1903, 10934780), (3460, 6014129), (3806, 5467390), (7612, 2733695), (9515, 2186956), (19030, 1093478), (38060, 546739)]