20028645

素因数分解:

$3^2\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{67}}^1\times {\mathrm{73}}^1$

素因数の和:171

約数の個数: 96

約数和(自身を含む): 43959552

約数和(自身を除く): 23930907

約数列:

[1, 3, 5, 7, 9, 13, 15, 21, 35, 39, 45, 63, 65, 67, 73, 91, 105, 117, 195, 201, 219, 273, 315, 335, 365, 455, 469, 511, 585, 603, 657, 819, 871, 949, 1005, 1095, 1365, 1407, 1533, 2345, 2555, 2613, 2847, 3015, 3285, 4095, 4221, 4355, 4599, 4745, 4891, 6097, 6643, 7035, 7665, 7839, 8541, 13065, 14235, 14673, 18291, 19929, 21105, 22995, 24455, 30485, 33215, 34237, 39195, 42705, 44019, 54873, 59787, 63583, 73365, 91455, 99645, 102711, 171185, 190749, 220095, 274365, 298935, 308133, 317915, 445081, 513555, 572247, 953745, 1335243, 1540665, 2225405, 2861235, 4005729, 6676215, 20028645]

約数ペア:

[(1, 20028645), (3, 6676215), (5, 4005729), (7, 2861235), (9, 2225405), (13, 1540665), (15, 1335243), (21, 953745), (35, 572247), (39, 513555), (45, 445081), (63, 317915), (65, 308133), (67, 298935), (73, 274365), (91, 220095), (105, 190749), (117, 171185), (195, 102711), (201, 99645), (219, 91455), (273, 73365), (315, 63583), (335, 59787), (365, 54873), (455, 44019), (469, 42705), (511, 39195), (585, 34237), (603, 33215), (657, 30485), (819, 24455), (871, 22995), (949, 21105), (1005, 19929), (1095, 18291), (1365, 14673), (1407, 14235), (1533, 13065), (2345, 8541), (2555, 7839), (2613, 7665), (2847, 7035), (3015, 6643), (3285, 6097), (4095, 4891), (4221, 4745), (4355, 4599)]