20100290

素因数分解:

$2^1\times 5^1\times 7^2\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{127}}^1$

素因数の和:184

約数の個数: 96

約数和(自身を含む): 47278080

約数和(自身を除く): 27177790

約数列:

[1, 2, 5, 7, 10, 14, 17, 19, 34, 35, 38, 49, 70, 85, 95, 98, 119, 127, 133, 170, 190, 238, 245, 254, 266, 323, 490, 595, 635, 646, 665, 833, 889, 931, 1190, 1270, 1330, 1615, 1666, 1778, 1862, 2159, 2261, 2413, 3230, 4165, 4318, 4445, 4522, 4655, 4826, 6223, 8330, 8890, 9310, 10795, 11305, 12065, 12446, 15113, 15827, 16891, 21590, 22610, 24130, 30226, 31115, 31654, 33782, 41021, 62230, 75565, 79135, 82042, 84455, 105791, 118237, 151130, 158270, 168910, 205105, 211582, 236474, 287147, 410210, 528955, 574294, 591185, 1057910, 1182370, 1435735, 2010029, 2871470, 4020058, 10050145, 20100290]

約数ペア:

[(1, 20100290), (2, 10050145), (5, 4020058), (7, 2871470), (10, 2010029), (14, 1435735), (17, 1182370), (19, 1057910), (34, 591185), (35, 574294), (38, 528955), (49, 410210), (70, 287147), (85, 236474), (95, 211582), (98, 205105), (119, 168910), (127, 158270), (133, 151130), (170, 118237), (190, 105791), (238, 84455), (245, 82042), (254, 79135), (266, 75565), (323, 62230), (490, 41021), (595, 33782), (635, 31654), (646, 31115), (665, 30226), (833, 24130), (889, 22610), (931, 21590), (1190, 16891), (1270, 15827), (1330, 15113), (1615, 12446), (1666, 12065), (1778, 11305), (1862, 10795), (2159, 9310), (2261, 8890), (2413, 8330), (3230, 6223), (4165, 4826), (4318, 4655), (4445, 4522)]