18756640

素因数分解:

$2^5\times 5^1\times 7^1\times {\mathrm{16747}}^1$

素因数の和:16769

約数の個数: 48

約数和(自身を含む): 50645952

約数和(自身を除く): 31889312

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 56, 70, 80, 112, 140, 160, 224, 280, 560, 1120, 16747, 33494, 66988, 83735, 117229, 133976, 167470, 234458, 267952, 334940, 468916, 535904, 586145, 669880, 937832, 1172290, 1339760, 1875664, 2344580, 2679520, 3751328, 4689160, 9378320, 18756640]

約数ペア:

[(1, 18756640), (2, 9378320), (4, 4689160), (5, 3751328), (7, 2679520), (8, 2344580), (10, 1875664), (14, 1339760), (16, 1172290), (20, 937832), (28, 669880), (32, 586145), (35, 535904), (40, 468916), (56, 334940), (70, 267952), (80, 234458), (112, 167470), (140, 133976), (160, 117229), (224, 83735), (280, 66988), (560, 33494), (1120, 16747)]