20104700

素因数分解:

$2^2\times 5^2\times 7^2\times {\mathrm{11}}^1\times {\mathrm{373}}^1$

素因数の和:412

約数の個数: 108

約数和(自身を含む): 55512072

約数和(自身を除く): 35407372

約数列:

[1, 2, 4, 5, 7, 10, 11, 14, 20, 22, 25, 28, 35, 44, 49, 50, 55, 70, 77, 98, 100, 110, 140, 154, 175, 196, 220, 245, 275, 308, 350, 373, 385, 490, 539, 550, 700, 746, 770, 980, 1078, 1100, 1225, 1492, 1540, 1865, 1925, 2156, 2450, 2611, 2695, 3730, 3850, 4103, 4900, 5222, 5390, 7460, 7700, 8206, 9325, 10444, 10780, 13055, 13475, 16412, 18277, 18650, 20515, 26110, 26950, 28721, 36554, 37300, 41030, 52220, 53900, 57442, 65275, 73108, 82060, 91385, 102575, 114884, 130550, 143605, 182770, 201047, 205150, 261100, 287210, 365540, 402094, 410300, 456925, 574420, 718025, 804188, 913850, 1005235, 1436050, 1827700, 2010470, 2872100, 4020940, 5026175, 10052350, 20104700]

約数ペア:

[(1, 20104700), (2, 10052350), (4, 5026175), (5, 4020940), (7, 2872100), (10, 2010470), (11, 1827700), (14, 1436050), (20, 1005235), (22, 913850), (25, 804188), (28, 718025), (35, 574420), (44, 456925), (49, 410300), (50, 402094), (55, 365540), (70, 287210), (77, 261100), (98, 205150), (100, 201047), (110, 182770), (140, 143605), (154, 130550), (175, 114884), (196, 102575), (220, 91385), (245, 82060), (275, 73108), (308, 65275), (350, 57442), (373, 53900), (385, 52220), (490, 41030), (539, 37300), (550, 36554), (700, 28721), (746, 26950), (770, 26110), (980, 20515), (1078, 18650), (1100, 18277), (1225, 16412), (1492, 13475), (1540, 13055), (1865, 10780), (1925, 10444), (2156, 9325), (2450, 8206), (2611, 7700), (2695, 7460), (3730, 5390), (3850, 5222), (4103, 4900)]