20031220

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{83}}^1\times {\mathrm{1097}}^1$

素因数の和:1200

約数の個数: 48

約数和(自身を含む): 46484928

約数和(自身を除く): 26453708

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 83, 110, 166, 220, 332, 415, 830, 913, 1097, 1660, 1826, 2194, 3652, 4388, 4565, 5485, 9130, 10970, 12067, 18260, 21940, 24134, 48268, 60335, 91051, 120670, 182102, 241340, 364204, 455255, 910510, 1001561, 1821020, 2003122, 4006244, 5007805, 10015610, 20031220]

約数ペア:

[(1, 20031220), (2, 10015610), (4, 5007805), (5, 4006244), (10, 2003122), (11, 1821020), (20, 1001561), (22, 910510), (44, 455255), (55, 364204), (83, 241340), (110, 182102), (166, 120670), (220, 91051), (332, 60335), (415, 48268), (830, 24134), (913, 21940), (1097, 18260), (1660, 12067), (1826, 10970), (2194, 9130), (3652, 5485), (4388, 4565)]