40808320

素因数分解:

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

素因数の和:9135

約数の個数: 64

約数和(自身を含む): 111506400

約数和(自身を除く): 70698080

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

約数ペア:

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