20739168

素因数分解:

$2^5\times 3^2\times {\mathrm{107}}^1\times {\mathrm{673}}^1$

素因数の和:796

約数の個数: 72

約数和(自身を含む): 59616648

約数和(自身を除く): 38877480

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 32, 36, 48, 72, 96, 107, 144, 214, 288, 321, 428, 642, 673, 856, 963, 1284, 1346, 1712, 1926, 2019, 2568, 2692, 3424, 3852, 4038, 5136, 5384, 6057, 7704, 8076, 10272, 10768, 12114, 15408, 16152, 21536, 24228, 30816, 32304, 48456, 64608, 72011, 96912, 144022, 193824, 216033, 288044, 432066, 576088, 648099, 864132, 1152176, 1296198, 1728264, 2304352, 2592396, 3456528, 5184792, 6913056, 10369584, 20739168]

約数ペア:

[(1, 20739168), (2, 10369584), (3, 6913056), (4, 5184792), (6, 3456528), (8, 2592396), (9, 2304352), (12, 1728264), (16, 1296198), (18, 1152176), (24, 864132), (32, 648099), (36, 576088), (48, 432066), (72, 288044), (96, 216033), (107, 193824), (144, 144022), (214, 96912), (288, 72011), (321, 64608), (428, 48456), (642, 32304), (673, 30816), (856, 24228), (963, 21536), (1284, 16152), (1346, 15408), (1712, 12114), (1926, 10768), (2019, 10272), (2568, 8076), (2692, 7704), (3424, 6057), (3852, 5384), (4038, 5136)]