20533450

素因数分解:

$2^1\times 5^2\times 7^2\times {\mathrm{17}}^2\times {\mathrm{29}}^1$

素因数の和:89

約数の個数: 108

約数和(自身を含む): 48822210

約数和(自身を除く): 28288760

約数列:

[1, 2, 5, 7, 10, 14, 17, 25, 29, 34, 35, 49, 50, 58, 70, 85, 98, 119, 145, 170, 175, 203, 238, 245, 289, 290, 350, 406, 425, 490, 493, 578, 595, 725, 833, 850, 986, 1015, 1190, 1225, 1421, 1445, 1450, 1666, 2023, 2030, 2450, 2465, 2842, 2890, 2975, 3451, 4046, 4165, 4930, 5075, 5950, 6902, 7105, 7225, 8330, 8381, 10115, 10150, 12325, 14161, 14210, 14450, 16762, 17255, 20230, 20825, 24157, 24650, 28322, 34510, 35525, 41650, 41905, 48314, 50575, 58667, 70805, 71050, 83810, 86275, 101150, 117334, 120785, 141610, 172550, 209525, 241570, 293335, 354025, 410669, 419050, 586670, 603925, 708050, 821338, 1207850, 1466675, 2053345, 2933350, 4106690, 10266725, 20533450]

約数ペア:

[(1, 20533450), (2, 10266725), (5, 4106690), (7, 2933350), (10, 2053345), (14, 1466675), (17, 1207850), (25, 821338), (29, 708050), (34, 603925), (35, 586670), (49, 419050), (50, 410669), (58, 354025), (70, 293335), (85, 241570), (98, 209525), (119, 172550), (145, 141610), (170, 120785), (175, 117334), (203, 101150), (238, 86275), (245, 83810), (289, 71050), (290, 70805), (350, 58667), (406, 50575), (425, 48314), (490, 41905), (493, 41650), (578, 35525), (595, 34510), (725, 28322), (833, 24650), (850, 24157), (986, 20825), (1015, 20230), (1190, 17255), (1225, 16762), (1421, 14450), (1445, 14210), (1450, 14161), (1666, 12325), (2023, 10150), (2030, 10115), (2450, 8381), (2465, 8330), (2842, 7225), (2890, 7105), (2975, 6902), (3451, 5950), (4046, 5075), (4165, 4930)]