81867520

素因数分解:

$2^8\times 5^1\times 7^1\times {\mathrm{9137}}^1$

素因数の和:9165

約数の個数: 72

約数和(自身を含む): 224136864

約数和(自身を除く): 142269344

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, 9137, 18274, 36548, 45685, 63959, 73096, 91370, 127918, 146192, 182740, 255836, 292384, 319795, 365480, 511672, 584768, 639590, 730960, 1023344, 1169536, 1279180, 1461920, 2046688, 2339072, 2558360, 2923840, 4093376, 5116720, 5847680, 8186752, 10233440, 11695360, 16373504, 20466880, 40933760, 81867520]

約数ペア:

[(1, 81867520), (2, 40933760), (4, 20466880), (5, 16373504), (7, 11695360), (8, 10233440), (10, 8186752), (14, 5847680), (16, 5116720), (20, 4093376), (28, 2923840), (32, 2558360), (35, 2339072), (40, 2046688), (56, 1461920), (64, 1279180), (70, 1169536), (80, 1023344), (112, 730960), (128, 639590), (140, 584768), (160, 511672), (224, 365480), (256, 319795), (280, 292384), (320, 255836), (448, 182740), (560, 146192), (640, 127918), (896, 91370), (1120, 73096), (1280, 63959), (1792, 45685), (2240, 36548), (4480, 18274), (8960, 9137)]