38818820

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{127}}^1$

素因数の和:213

約数の個数: 96

約数和(自身を含む): 92897280

約数和(自身を除く): 54078460

約数列:

[1, 2, 4, 5, 10, 17, 20, 29, 31, 34, 58, 62, 68, 85, 116, 124, 127, 145, 155, 170, 254, 290, 310, 340, 493, 508, 527, 580, 620, 635, 899, 986, 1054, 1270, 1798, 1972, 2108, 2159, 2465, 2540, 2635, 3596, 3683, 3937, 4318, 4495, 4930, 5270, 7366, 7874, 8636, 8990, 9860, 10540, 10795, 14732, 15283, 15748, 17980, 18415, 19685, 21590, 30566, 36830, 39370, 43180, 61132, 62611, 66929, 73660, 76415, 78740, 114173, 125222, 133858, 152830, 228346, 250444, 267716, 305660, 313055, 334645, 456692, 570865, 626110, 669290, 1141730, 1252220, 1338580, 1940941, 2283460, 3881882, 7763764, 9704705, 19409410, 38818820]

約数ペア:

[(1, 38818820), (2, 19409410), (4, 9704705), (5, 7763764), (10, 3881882), (17, 2283460), (20, 1940941), (29, 1338580), (31, 1252220), (34, 1141730), (58, 669290), (62, 626110), (68, 570865), (85, 456692), (116, 334645), (124, 313055), (127, 305660), (145, 267716), (155, 250444), (170, 228346), (254, 152830), (290, 133858), (310, 125222), (340, 114173), (493, 78740), (508, 76415), (527, 73660), (580, 66929), (620, 62611), (635, 61132), (899, 43180), (986, 39370), (1054, 36830), (1270, 30566), (1798, 21590), (1972, 19685), (2108, 18415), (2159, 17980), (2465, 15748), (2540, 15283), (2635, 14732), (3596, 10795), (3683, 10540), (3937, 9860), (4318, 8990), (4495, 8636), (4930, 7874), (5270, 7366)]