1301520640

素因数分解:

$2^8\times 5^1\times 7^1\times {\mathrm{145259}}^1$

素因数の和:145287

約数の個数: 72

約数和(自身を含む): 3562937280

約数和(自身を除く): 2261416640

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, 256, 280, 320, 448, 560, 640, 896, 1120, 1280, 1792, 2240, 4480, 8960, 145259, 290518, 581036, 726295, 1016813, 1162072, 1452590, 2033626, 2324144, 2905180, 4067252, 4648288, 5084065, 5810360, 8134504, 9296576, 10168130, 11620720, 16269008, 18593152, 20336260, 23241440, 32538016, 37186304, 40672520, 46482880, 65076032, 81345040, 92965760, 130152064, 162690080, 185931520, 260304128, 325380160, 650760320, 1301520640]

約数ペア:

[(1, 1301520640), (2, 650760320), (4, 325380160), (5, 260304128), (7, 185931520), (8, 162690080), (10, 130152064), (14, 92965760), (16, 81345040), (20, 65076032), (28, 46482880), (32, 40672520), (35, 37186304), (40, 32538016), (56, 23241440), (64, 20336260), (70, 18593152), (80, 16269008), (112, 11620720), (128, 10168130), (140, 9296576), (160, 8134504), (224, 5810360), (256, 5084065), (280, 4648288), (320, 4067252), (448, 2905180), (560, 2324144), (640, 2033626), (896, 1452590), (1120, 1162072), (1280, 1016813), (1792, 726295), (2240, 581036), (4480, 290518), (8960, 145259)]