638819532

素因数分解:

$2^2\times 3^2\times {\mathrm{13}}^1\times {\mathrm{107}}^1\times {\mathrm{12757}}^1$

素因数の和:12887

約数の個数: 72

約数和(自身を含む): 1755398736

約数和(自身を除く): 1116579204

約数列:

[1, 2, 3, 4, 6, 9, 12, 13, 18, 26, 36, 39, 52, 78, 107, 117, 156, 214, 234, 321, 428, 468, 642, 963, 1284, 1391, 1926, 2782, 3852, 4173, 5564, 8346, 12519, 12757, 16692, 25038, 25514, 38271, 50076, 51028, 76542, 114813, 153084, 165841, 229626, 331682, 459252, 497523, 663364, 995046, 1364999, 1492569, 1990092, 2729998, 2985138, 4094997, 5459996, 5970276, 8189994, 12284991, 16379988, 17744987, 24569982, 35489974, 49139964, 53234961, 70979948, 106469922, 159704883, 212939844, 319409766, 638819532]

約数ペア:

[(1, 638819532), (2, 319409766), (3, 212939844), (4, 159704883), (6, 106469922), (9, 70979948), (12, 53234961), (13, 49139964), (18, 35489974), (26, 24569982), (36, 17744987), (39, 16379988), (52, 12284991), (78, 8189994), (107, 5970276), (117, 5459996), (156, 4094997), (214, 2985138), (234, 2729998), (321, 1990092), (428, 1492569), (468, 1364999), (642, 995046), (963, 663364), (1284, 497523), (1391, 459252), (1926, 331682), (2782, 229626), (3852, 165841), (4173, 153084), (5564, 114813), (8346, 76542), (12519, 51028), (12757, 50076), (16692, 38271), (25038, 25514)]