213678640

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{381569}}^1$

素因数の和:381589

約数の個数: 40

約数和(自身を含む): 567776160

約数和(自身を除く): 354097520

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 280, 560, 381569, 763138, 1526276, 1907845, 2670983, 3052552, 3815690, 5341966, 6105104, 7631380, 10683932, 13354915, 15262760, 21367864, 26709830, 30525520, 42735728, 53419660, 106839320, 213678640]

約数ペア:

[(1, 213678640), (2, 106839320), (4, 53419660), (5, 42735728), (7, 30525520), (8, 26709830), (10, 21367864), (14, 15262760), (16, 13354915), (20, 10683932), (28, 7631380), (35, 6105104), (40, 5341966), (56, 3815690), (70, 3052552), (80, 2670983), (112, 1907845), (140, 1526276), (280, 763138), (560, 381569)]