20761180

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^2\times {\mathrm{23}}^1\times {\mathrm{373}}^1$

素因数の和:427

約数の個数: 72

約数和(自身を含む): 50139936

約数和(自身を除く): 29378756

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 23, 44, 46, 55, 92, 110, 115, 121, 220, 230, 242, 253, 373, 460, 484, 506, 605, 746, 1012, 1210, 1265, 1492, 1865, 2420, 2530, 2783, 3730, 4103, 5060, 5566, 7460, 8206, 8579, 11132, 13915, 16412, 17158, 20515, 27830, 34316, 41030, 42895, 45133, 55660, 82060, 85790, 90266, 94369, 171580, 180532, 188738, 225665, 377476, 451330, 471845, 902660, 943690, 1038059, 1887380, 2076118, 4152236, 5190295, 10380590, 20761180]

約数ペア:

[(1, 20761180), (2, 10380590), (4, 5190295), (5, 4152236), (10, 2076118), (11, 1887380), (20, 1038059), (22, 943690), (23, 902660), (44, 471845), (46, 451330), (55, 377476), (92, 225665), (110, 188738), (115, 180532), (121, 171580), (220, 94369), (230, 90266), (242, 85790), (253, 82060), (373, 55660), (460, 45133), (484, 42895), (506, 41030), (605, 34316), (746, 27830), (1012, 20515), (1210, 17158), (1265, 16412), (1492, 13915), (1865, 11132), (2420, 8579), (2530, 8206), (2783, 7460), (3730, 5566), (4103, 5060)]