20054475

素因数分解:

$3^2\times 5^2\times 7^2\times {\mathrm{17}}^1\times {\mathrm{107}}^1$

素因数の和:154

約数の個数: 108

約数和(自身を含む): 44655624

約数和(自身を除く): 24601149

約数列:

[1, 3, 5, 7, 9, 15, 17, 21, 25, 35, 45, 49, 51, 63, 75, 85, 105, 107, 119, 147, 153, 175, 225, 245, 255, 315, 321, 357, 425, 441, 525, 535, 595, 735, 749, 765, 833, 963, 1071, 1225, 1275, 1575, 1605, 1785, 1819, 2205, 2247, 2499, 2675, 2975, 3675, 3745, 3825, 4165, 4815, 5243, 5355, 5457, 6741, 7497, 8025, 8925, 9095, 11025, 11235, 12495, 12733, 15729, 16371, 18725, 20825, 24075, 26215, 26775, 27285, 33705, 37485, 38199, 45475, 47187, 56175, 62475, 63665, 78645, 81855, 89131, 114597, 131075, 136425, 168525, 187425, 190995, 235935, 267393, 318325, 393225, 409275, 445655, 572985, 802179, 954975, 1179675, 1336965, 2228275, 2864925, 4010895, 6684825, 20054475]

約数ペア:

[(1, 20054475), (3, 6684825), (5, 4010895), (7, 2864925), (9, 2228275), (15, 1336965), (17, 1179675), (21, 954975), (25, 802179), (35, 572985), (45, 445655), (49, 409275), (51, 393225), (63, 318325), (75, 267393), (85, 235935), (105, 190995), (107, 187425), (119, 168525), (147, 136425), (153, 131075), (175, 114597), (225, 89131), (245, 81855), (255, 78645), (315, 63665), (321, 62475), (357, 56175), (425, 47187), (441, 45475), (525, 38199), (535, 37485), (595, 33705), (735, 27285), (749, 26775), (765, 26215), (833, 24075), (963, 20825), (1071, 18725), (1225, 16371), (1275, 15729), (1575, 12733), (1605, 12495), (1785, 11235), (1819, 11025), (2205, 9095), (2247, 8925), (2499, 8025), (2675, 7497), (2975, 6741), (3675, 5457), (3745, 5355), (3825, 5243), (4165, 4815)]