13319960

素因数分解:

$2^3\times 5^1\times {\mathrm{53}}^1\times {\mathrm{61}}^1\times {\mathrm{103}}^1$

素因数の和:228

約数の個数: 64

約数和(自身を含む): 31337280

約数和(自身を除く): 18017320

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 53, 61, 103, 106, 122, 206, 212, 244, 265, 305, 412, 424, 488, 515, 530, 610, 824, 1030, 1060, 1220, 2060, 2120, 2440, 3233, 4120, 5459, 6283, 6466, 10918, 12566, 12932, 16165, 21836, 25132, 25864, 27295, 31415, 32330, 43672, 50264, 54590, 62830, 64660, 109180, 125660, 129320, 218360, 251320, 332999, 665998, 1331996, 1664995, 2663992, 3329990, 6659980, 13319960]

約数ペア:

[(1, 13319960), (2, 6659980), (4, 3329990), (5, 2663992), (8, 1664995), (10, 1331996), (20, 665998), (40, 332999), (53, 251320), (61, 218360), (103, 129320), (106, 125660), (122, 109180), (206, 64660), (212, 62830), (244, 54590), (265, 50264), (305, 43672), (412, 32330), (424, 31415), (488, 27295), (515, 25864), (530, 25132), (610, 21836), (824, 16165), (1030, 12932), (1060, 12566), (1220, 10918), (2060, 6466), (2120, 6283), (2440, 5459), (3233, 4120)]