20215702100

素因数分解:

$2^2\times 5^2\times {\mathrm{11}}^1\times {\mathrm{97}}^1\times {\mathrm{189463}}^1$

素因数の和:189585

約数の個数: 72

約数和(自身を含む): 48349697088

約数和(自身を除く): 28133994988

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 25, 44, 50, 55, 97, 100, 110, 194, 220, 275, 388, 485, 550, 970, 1067, 1100, 1940, 2134, 2425, 4268, 4850, 5335, 9700, 10670, 21340, 26675, 53350, 106700, 189463, 378926, 757852, 947315, 1894630, 2084093, 3789260, 4168186, 4736575, 8336372, 9473150, 10420465, 18377911, 18946300, 20840930, 36755822, 41681860, 52102325, 73511644, 91889555, 104204650, 183779110, 202157021, 208409300, 367558220, 404314042, 459447775, 808628084, 918895550, 1010785105, 1837791100, 2021570210, 4043140420, 5053925525, 10107851050, 20215702100]

約数ペア:

[(1, 20215702100), (2, 10107851050), (4, 5053925525), (5, 4043140420), (10, 2021570210), (11, 1837791100), (20, 1010785105), (22, 918895550), (25, 808628084), (44, 459447775), (50, 404314042), (55, 367558220), (97, 208409300), (100, 202157021), (110, 183779110), (194, 104204650), (220, 91889555), (275, 73511644), (388, 52102325), (485, 41681860), (550, 36755822), (970, 20840930), (1067, 18946300), (1100, 18377911), (1940, 10420465), (2134, 9473150), (2425, 8336372), (4268, 4736575), (4850, 4168186), (5335, 3789260), (9700, 2084093), (10670, 1894630), (21340, 947315), (26675, 757852), (53350, 378926), (106700, 189463)]