81616640

素因数分解:

$2^8\times 5^1\times 7^1\times {\mathrm{9109}}^1$

素因数の和:9137

約数の個数: 72

約数和(自身を含む): 223450080

約数和(自身を除く): 141833440

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, 9109, 18218, 36436, 45545, 63763, 72872, 91090, 127526, 145744, 182180, 255052, 291488, 318815, 364360, 510104, 582976, 637630, 728720, 1020208, 1165952, 1275260, 1457440, 2040416, 2331904, 2550520, 2914880, 4080832, 5101040, 5829760, 8161664, 10202080, 11659520, 16323328, 20404160, 40808320, 81616640]

約数ペア:

[(1, 81616640), (2, 40808320), (4, 20404160), (5, 16323328), (7, 11659520), (8, 10202080), (10, 8161664), (14, 5829760), (16, 5101040), (20, 4080832), (28, 2914880), (32, 2550520), (35, 2331904), (40, 2040416), (56, 1457440), (64, 1275260), (70, 1165952), (80, 1020208), (112, 728720), (128, 637630), (140, 582976), (160, 510104), (224, 364360), (256, 318815), (280, 291488), (320, 255052), (448, 182180), (560, 145744), (640, 127526), (896, 91090), (1120, 72872), (1280, 63763), (1792, 45545), (2240, 36436), (4480, 18218), (8960, 9109)]