12803720

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{991}}^1$

素因数の和:1038

約数の個数: 64

約数和(自身を含む): 32140800

約数和(自身を除く): 19337080

約数列:

[1, 2, 4, 5, 8, 10, 17, 19, 20, 34, 38, 40, 68, 76, 85, 95, 136, 152, 170, 190, 323, 340, 380, 646, 680, 760, 991, 1292, 1615, 1982, 2584, 3230, 3964, 4955, 6460, 7928, 9910, 12920, 16847, 18829, 19820, 33694, 37658, 39640, 67388, 75316, 84235, 94145, 134776, 150632, 168470, 188290, 320093, 336940, 376580, 640186, 673880, 753160, 1280372, 1600465, 2560744, 3200930, 6401860, 12803720]

約数ペア:

[(1, 12803720), (2, 6401860), (4, 3200930), (5, 2560744), (8, 1600465), (10, 1280372), (17, 753160), (19, 673880), (20, 640186), (34, 376580), (38, 336940), (40, 320093), (68, 188290), (76, 168470), (85, 150632), (95, 134776), (136, 94145), (152, 84235), (170, 75316), (190, 67388), (323, 39640), (340, 37658), (380, 33694), (646, 19820), (680, 18829), (760, 16847), (991, 12920), (1292, 9910), (1615, 7928), (1982, 6460), (2584, 4955), (3230, 3964)]