81925760

素因数分解:

$2^7\times 5^1\times 7^1\times {\mathrm{18287}}^1$

素因数の和:18313

約数の個数: 64

約数和(自身を含む): 223845120

約数和(自身を除く): 141919360

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, 18287, 36574, 73148, 91435, 128009, 146296, 182870, 256018, 292592, 365740, 512036, 585184, 640045, 731480, 1024072, 1170368, 1280090, 1462960, 2048144, 2340736, 2560180, 2925920, 4096288, 5120360, 5851840, 8192576, 10240720, 11703680, 16385152, 20481440, 40962880, 81925760]

約数ペア:

[(1, 81925760), (2, 40962880), (4, 20481440), (5, 16385152), (7, 11703680), (8, 10240720), (10, 8192576), (14, 5851840), (16, 5120360), (20, 4096288), (28, 2925920), (32, 2560180), (35, 2340736), (40, 2048144), (56, 1462960), (64, 1280090), (70, 1170368), (80, 1024072), (112, 731480), (128, 640045), (140, 585184), (160, 512036), (224, 365740), (280, 292592), (320, 256018), (448, 182870), (560, 146296), (640, 128009), (896, 91435), (1120, 73148), (2240, 36574), (4480, 18287)]