31486455

素因数分解:

$3^3\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{233}}^1$

素因数の和:278

約数の個数: 128

約数和(自身を含む): 75479040

約数和(自身を除く): 43992585

約数列:

[1, 3, 5, 7, 9, 11, 13, 15, 21, 27, 33, 35, 39, 45, 55, 63, 65, 77, 91, 99, 105, 117, 135, 143, 165, 189, 195, 231, 233, 273, 297, 315, 351, 385, 429, 455, 495, 585, 693, 699, 715, 819, 945, 1001, 1155, 1165, 1287, 1365, 1485, 1631, 1755, 2079, 2097, 2145, 2457, 2563, 3003, 3029, 3465, 3495, 3861, 4095, 4893, 5005, 6291, 6435, 7689, 8155, 9009, 9087, 10395, 10485, 12285, 12815, 14679, 15015, 15145, 17941, 19305, 21203, 23067, 24465, 27027, 27261, 31455, 33319, 38445, 44037, 45045, 45435, 53823, 63609, 69201, 73395, 81783, 89705, 99957, 106015, 115335, 135135, 136305, 161469, 166595, 190827, 220185, 233233, 269115, 299871, 318045, 346005, 408915, 484407, 499785, 572481, 699699, 807345, 899613, 954135, 1166165, 1499355, 2099097, 2422035, 2862405, 3498495, 4498065, 6297291, 10495485, 31486455]

約数ペア:

[(1, 31486455), (3, 10495485), (5, 6297291), (7, 4498065), (9, 3498495), (11, 2862405), (13, 2422035), (15, 2099097), (21, 1499355), (27, 1166165), (33, 954135), (35, 899613), (39, 807345), (45, 699699), (55, 572481), (63, 499785), (65, 484407), (77, 408915), (91, 346005), (99, 318045), (105, 299871), (117, 269115), (135, 233233), (143, 220185), (165, 190827), (189, 166595), (195, 161469), (231, 136305), (233, 135135), (273, 115335), (297, 106015), (315, 99957), (351, 89705), (385, 81783), (429, 73395), (455, 69201), (495, 63609), (585, 53823), (693, 45435), (699, 45045), (715, 44037), (819, 38445), (945, 33319), (1001, 31455), (1155, 27261), (1165, 27027), (1287, 24465), (1365, 23067), (1485, 21203), (1631, 19305), (1755, 17941), (2079, 15145), (2097, 15015), (2145, 14679), (2457, 12815), (2563, 12285), (3003, 10485), (3029, 10395), (3465, 9087), (3495, 9009), (3861, 8155), (4095, 7689), (4893, 6435), (5005, 6291)]