21069198640

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{37623569}}^1$

素因数の和:37623589

約数の個数: 40

約数和(自身を含む): 55983872160

約数和(自身を除く): 34914673520

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 280, 560, 37623569, 75247138, 150494276, 188117845, 263364983, 300988552, 376235690, 526729966, 601977104, 752471380, 1053459932, 1316824915, 1504942760, 2106919864, 2633649830, 3009885520, 4213839728, 5267299660, 10534599320, 21069198640]

約数ペア:

[(1, 21069198640), (2, 10534599320), (4, 5267299660), (5, 4213839728), (7, 3009885520), (8, 2633649830), (10, 2106919864), (14, 1504942760), (16, 1316824915), (20, 1053459932), (28, 752471380), (35, 601977104), (40, 526729966), (56, 376235690), (70, 300988552), (80, 263364983), (112, 188117845), (140, 150494276), (280, 75247138), (560, 37623569)]