19020724

素因数分解:

$2^2\times {\mathrm{23}}^2\times {\mathrm{89}}^1\times {\mathrm{101}}^1$

素因数の和:240

約数の個数: 36

約数和(自身を含む): 35535780

約数和(自身を除く): 16515056

約数列:

[1, 2, 4, 23, 46, 89, 92, 101, 178, 202, 356, 404, 529, 1058, 2047, 2116, 2323, 4094, 4646, 8188, 8989, 9292, 17978, 35956, 47081, 53429, 94162, 106858, 188324, 206747, 213716, 413494, 826988, 4755181, 9510362, 19020724]

約数ペア:

[(1, 19020724), (2, 9510362), (4, 4755181), (23, 826988), (46, 413494), (89, 213716), (92, 206747), (101, 188324), (178, 106858), (202, 94162), (356, 53429), (404, 47081), (529, 35956), (1058, 17978), (2047, 9292), (2116, 8989), (2323, 8188), (4094, 4646)]