20758864

素因数分解:

$2^4\times 7^1\times {\mathrm{73}}^1\times {\mathrm{2539}}^1$

素因数の和:2627

約数の個数: 40

約数和(自身を含む): 46614080

約数和(自身を除く): 25855216

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 73, 112, 146, 292, 511, 584, 1022, 1168, 2044, 2539, 4088, 5078, 8176, 10156, 17773, 20312, 35546, 40624, 71092, 142184, 185347, 284368, 370694, 741388, 1297429, 1482776, 2594858, 2965552, 5189716, 10379432, 20758864]

約数ペア:

[(1, 20758864), (2, 10379432), (4, 5189716), (7, 2965552), (8, 2594858), (14, 1482776), (16, 1297429), (28, 741388), (56, 370694), (73, 284368), (112, 185347), (146, 142184), (292, 71092), (511, 40624), (584, 35546), (1022, 20312), (1168, 17773), (2044, 10156), (2539, 8176), (4088, 5078)]