25607440

素因数分解:

$2^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{991}}^1$

素因数の和:1040

約数の個数: 80

約数和(自身を含む): 66424320

約数和(自身を除く): 40816880

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 19, 20, 34, 38, 40, 68, 76, 80, 85, 95, 136, 152, 170, 190, 272, 304, 323, 340, 380, 646, 680, 760, 991, 1292, 1360, 1520, 1615, 1982, 2584, 3230, 3964, 4955, 5168, 6460, 7928, 9910, 12920, 15856, 16847, 18829, 19820, 25840, 33694, 37658, 39640, 67388, 75316, 79280, 84235, 94145, 134776, 150632, 168470, 188290, 269552, 301264, 320093, 336940, 376580, 640186, 673880, 753160, 1280372, 1347760, 1506320, 1600465, 2560744, 3200930, 5121488, 6401860, 12803720, 25607440]

約数ペア:

[(1, 25607440), (2, 12803720), (4, 6401860), (5, 5121488), (8, 3200930), (10, 2560744), (16, 1600465), (17, 1506320), (19, 1347760), (20, 1280372), (34, 753160), (38, 673880), (40, 640186), (68, 376580), (76, 336940), (80, 320093), (85, 301264), (95, 269552), (136, 188290), (152, 168470), (170, 150632), (190, 134776), (272, 94145), (304, 84235), (323, 79280), (340, 75316), (380, 67388), (646, 39640), (680, 37658), (760, 33694), (991, 25840), (1292, 19820), (1360, 18829), (1520, 16847), (1615, 15856), (1982, 12920), (2584, 9910), (3230, 7928), (3964, 6460), (4955, 5168)]