1297152640

素因数分解:

$2^7\times 5^1\times 7^1\times {\mathrm{289543}}^1$

素因数の和:289569

約数の個数: 64

約数和(自身を含む): 3544018560

約数和(自身を除く): 2246865920

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 56, 64, 70, 80, 112, 128, 140, 160, 224, 280, 320, 448, 560, 640, 896, 1120, 2240, 4480, 289543, 579086, 1158172, 1447715, 2026801, 2316344, 2895430, 4053602, 4632688, 5790860, 8107204, 9265376, 10134005, 11581720, 16214408, 18530752, 20268010, 23163440, 32428816, 37061504, 40536020, 46326880, 64857632, 81072040, 92653760, 129715264, 162144080, 185307520, 259430528, 324288160, 648576320, 1297152640]

約数ペア:

[(1, 1297152640), (2, 648576320), (4, 324288160), (5, 259430528), (7, 185307520), (8, 162144080), (10, 129715264), (14, 92653760), (16, 81072040), (20, 64857632), (28, 46326880), (32, 40536020), (35, 37061504), (40, 32428816), (56, 23163440), (64, 20268010), (70, 18530752), (80, 16214408), (112, 11581720), (128, 10134005), (140, 9265376), (160, 8107204), (224, 5790860), (280, 4632688), (320, 4053602), (448, 2895430), (560, 2316344), (640, 2026801), (896, 1447715), (1120, 1158172), (2240, 579086), (4480, 289543)]