28171640

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{100613}}^1$

素因数の和:100631

約数の個数: 32

約数和(自身を含む): 72442080

約数和(自身を除く): 44270440

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 100613, 201226, 402452, 503065, 704291, 804904, 1006130, 1408582, 2012260, 2817164, 3521455, 4024520, 5634328, 7042910, 14085820, 28171640]

約数ペア:

[(1, 28171640), (2, 14085820), (4, 7042910), (5, 5634328), (7, 4024520), (8, 3521455), (10, 2817164), (14, 2012260), (20, 1408582), (28, 1006130), (35, 804904), (40, 704291), (56, 503065), (70, 402452), (140, 201226), (280, 100613)]