87558020

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^2\times {\mathrm{97}}^1\times {\mathrm{373}}^1$

素因数の和:501

約数の個数: 72

約数和(自身を含む): 204738072

約数和(自身を除く): 117180052

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 97, 110, 121, 194, 220, 242, 373, 388, 484, 485, 605, 746, 970, 1067, 1210, 1492, 1865, 1940, 2134, 2420, 3730, 4103, 4268, 5335, 7460, 8206, 10670, 11737, 16412, 20515, 21340, 23474, 36181, 41030, 45133, 46948, 58685, 72362, 82060, 90266, 117370, 144724, 180532, 180905, 225665, 234740, 361810, 397991, 451330, 723620, 795982, 902660, 1591964, 1989955, 3979910, 4377901, 7959820, 8755802, 17511604, 21889505, 43779010, 87558020]

約数ペア:

[(1, 87558020), (2, 43779010), (4, 21889505), (5, 17511604), (10, 8755802), (11, 7959820), (20, 4377901), (22, 3979910), (44, 1989955), (55, 1591964), (97, 902660), (110, 795982), (121, 723620), (194, 451330), (220, 397991), (242, 361810), (373, 234740), (388, 225665), (484, 180905), (485, 180532), (605, 144724), (746, 117370), (970, 90266), (1067, 82060), (1210, 72362), (1492, 58685), (1865, 46948), (1940, 45133), (2134, 41030), (2420, 36181), (3730, 23474), (4103, 21340), (4268, 20515), (5335, 16412), (7460, 11737), (8206, 10670)]